How to Bid HVAC Jobs in 2026 (Commercial & Residential Guide)

TL;DR: Bidding HVAC jobs profitably requires calculating your burdened labor rate (not just hourly wage), applying the right equipment markup (25-50% on major equipment, 100-400% on small parts), knowing your overhead per billable hour ($84.40/hr is the ACCA benchmark), and setting profit margin targets by job type (55-65% gross on service, 45-55% on replacements, 35-50% on new construction). This guide walks through every formula with real numbers, a complete bid sheet template, and the follow-up strategy that actually wins work.

A $45,000 commercial rooftop unit replacement bid goes sideways because the contractor forgot to calculate overhead per billable hour. The materials were right. Labor was right. But overhead was a flat guess, $3,000 tacked on and called a day. 

When the real math came out six months later, the actual overhead rate was $87.50/hr. On a job that size, that’s $6,200 underwater before a single dollar of profit.

That one mistake is more common than most contractors want to admit. And if you’re reading this, you’re probably tired of guessing too, tired of losing bids you should’ve won, or worse, winning bids that lose you money.

This guide covers everything needed to bid HVAC jobs profitably. Real formulas, real dollar figures, real markup strategies, for both residential and commercial work. No vague advice about “knowing your numbers.” We’re going to calculate them right here.

Want a quick AI-powered breakdown of HVAC bidding formulas from this guide? Click below.

Summarize with AI

Bidding vs. Estimating: What’s the Difference?

An estimate is your internal calculation of what a job will cost you to complete. It’s the sum of materials, labor hours, equipment, subcontractors, permits, and overhead. The estimate is for your eyes only.

A bid is the price you present to the customer. It includes your estimate plus your profit margin, contingency, and any strategic pricing adjustments based on the competitive landscape. The bid is your offer to perform the scope of work at a specific price.

Here’s why this matters: if you’re “estimating” jobs and handing that number to customers, you’re selling at cost. Plenty of contractors do this for years, busy as hell, always broke. They have an estimating problem disguised as a cash flow problem.

The process should always be: estimate first, then bid. Your estimate is the floor. Your bid is the floor plus profit, overhead recovery, risk premium, and market positioning.

If you want to sharpen your estimating skills before you start bidding, here is the full breakdown on how to estimate HVAC jobs that covers quantity takeoffs, material pricing, and labor hour calculations.

How to Calculate Labor Costs for a Bid

Labor is the single biggest line item on most HVAC bids,  40-60% of total job cost (BLS). 

And the number one mistake we see? Contractors use the wage they pay their tech as their labor cost.

Your tech makes $28.75/hr? Great. That’s not what that tech costs you.

The Burdened Labor Rate Formula

Your burdened labor rate is the true cost of putting a technician on a job. Here’s the formula:

Burdened Labor Rate = Base Wage + Payroll Taxes + Workers’ Comp + Benefits + Paid Time Off

Let’s work a real example with the median HVAC technician wage:

Component	Rate/Cost	Calculation
Base wage	$28.75/hr	Starting point
Payroll taxes (FICA, FUTA, SUTA)	~10.5%	$3.02/hr
Workers compensation	~8-12%	$2.88/hr (at 10%)
Health insurance	~$500/mo	$2.88/hr (÷ 174 billable hrs/mo)
Paid time off (2 weeks)	~3.8%	$1.09/hr
Tool allowance/uniforms	~$150/mo	$0.86/hr

Total burdened labor rate: $39.48/hr

That’s a 37% burden on top of the base wage. For experienced techs making $35-$45/hr, your burdened rate can easily hit $48-$62/hr.

Applying Labor to a Bid

Once you have your burden rate, multiply it by the estimated hours for the job:

Example — 3-Ton Residential AC Replacement:

• Lead installer (burdened rate: $47.50/hr) x 6 hours = $285.00
• Helper (burdened rate: $32.00/hr) x 6 hours = $192.00
• Total labor cost: $477.00

That $477 is your cost. It’s not what you charge. The charge comes later when you add overhead and profit.

Don’t Forget Prevailing Wage on Government Work

If you’re bidding on public or government HVAC projects, prevailing wage requirements can bump your labor costs 30-60% above your normal rates. Always check your state’s prevailing wage schedule before pricing government work. A $45/hr burdened rate can become $65-$72/hr on a prevailing wage job, and if you miss that in your bid, you’re eating the difference.

Equipment and Materials Markup Strategy

Your markup on equipment and materials is where you recover purchasing costs, warranty risk, warehousing, and the time spent sourcing and managing the supply chain. Here’s what healthy markups look like across different item categories:

Item Category	Typical Markup	Target Gross Margin	Example
Major equipment (condensers, air handlers, furnaces)	25-40%	20-30%	$2,800 cost → $3,500-$3,920 sell
Ductwork & sheet metal	35-50%	25-35%	$1,200 cost → $1,620-$1,800 sell
Refrigerant & specialty materials	40-60%	30-40%	$350 cost → $490-$560 sell
Small parts (capacitors, contactors, thermostats)	100-400%	50-80%	$12 cost → $24-$60 sell
Filters & consumables	200-500%	65-85%	$4 cost → $12-$24 sell

(Sources: EstimateKit)

Why the wide range on small parts? Because a $12 capacitor requires the same truck roll, diagnostic time, and expertise as a $300 control board. Your markup on small parts compensates for the fixed costs of showing up. Nobody’s going to bid a service call at cost just because the part is cheap.

Markup vs. Margin: Know the Difference

This trips people up constantly:

• Markup = (Sell Price – Cost) / Cost
• Margin = (Sell Price – Cost) / Sell Price

A 50% markup gives you a 33% margin. A 100% markup gives you a 50% margin. If your target gross margin on equipment is 30%, you need a markup of about 43%, not 30%.

Quick reference:

Target Gross Margin	Required Markup
25%	33%
30%	43%
35%	54%
40%	67%
50%	100%

For a deeper dive on pricing structures and how to set your rates, check out the detailed HVAC pricing guide.

Overhead Allocation: The Number Most Contractors Get Wrong

This is where my $45K bid fell apart, and it’s where most contractors leak profit without realizing it. Overhead includes everything you pay, whether or not a single tech is on a job:

• Rent/facility costs
• Office staff salaries (dispatcher, bookkeeper, office manager)
• Vehicle payments, fuel, maintenance
• Insurance: General liability averages $78/month, Workers comp averages $223/month (industry benchmarks)
• Software subscriptions (field service management, accounting, GPS)
• Marketing and advertising
• Licensing, permits, and continuing education
• Phone systems, uniforms, and tools

The Overhead Per Hour Formula

Overhead Per Billable Hour = Total Annual Overhead / Total Annual Billable Hours

Let’s say you’re a 5-truck shop:

Overhead Category	Annual Cost
Facility (rent, utilities)	$48,000
Office staff (2 people)	$95,000
Vehicle costs (5 trucks)	$72,000
Insurance (GL + WC + auto)	$38,000
Marketing	$36,000
Software & technology	$12,000
Licensing, training, misc	$15,000
Total overhead	$316,000

Now divide by billable hours. If each of your 5 techs bills 1,400 hours/year (accounting for drive time, callbacks, training, PTO):

$316,000 / 7,000 billable hours = $45.14/hr overhead

The ACCA 2025 benchmark for the total cost of rolling a truck (overhead + labor) is $84.40/hr. If your overhead per hour plus your burdened labor rate doesn’t add up to at least that, double-check your numbers — you might be forgetting costs.

Revenue Per Truck Benchmark

A healthy HVAC operation generates $300,000-$500,000 in revenue per truck per year (industry benchmark). If you’re significantly below $300K per truck, either you’re not billing enough hours, your prices are too low, or both. This is a sanity check you should run quarterly.

For more on keeping your margins healthy as you scale, read HVAC profit margins.

Profit Margin Targets by Job Type

Not all HVAC work carries the same margin, and your bids should reflect that. Here’s what healthy operations target:

Job Type	Target Gross Margin	Target Net Margin	Notes
Service / Repair	55-65%	20-25%	Highest margin — small parts markup + diagnostic fees
Replacement (residential)	45-55%	10-12%	Equipment-heavy, but volume makes up for it
New Construction (residential)	35-50%	3-5%	Competitive, spec-driven, tight margins
Commercial Service	50-60%	15-20%	Higher ticket, longer contracts
Commercial New Construction	35-45%	5-15%	Bid bonds, retention, and slow payment
Maintenance Agreements	55-65%	25-30%	Recurring revenue, planned labor

A critical note on net margins in new construction: That 3-5% net margin is not a typo. New construction is a volume game. You’re competing against every contractor in your market on plan-and-spec jobs, and the general contractor is squeezing every sub. 

If your overhead isn’t dialed in, new construction will bankrupt you while keeping your trucks busy.

This is why experienced contractors diversify. They use new construction for volume and reputation, service/replacement for margin, and maintenance agreements for cash flow stability. Your bidding strategy should reflect where each job type fits in your business model.

For a breakdown on flat rate vs. time-and-materials pricing, and how to present each option to close more deals, see our HVAC sales tips.

Example: Bid Sheet Template Breakdown

Let me walk through a complete bid for a 3-ton residential air conditioning replacement. This is a bread-and-butter job for most HVAC companies, and it’s a perfect template for building your bid sheets.

Job Scope

• Remove existing 3-ton, 13 SEER condenser and evaporator coil
• Install new 3-ton, 16 SEER2 condenser and matching evaporator coil
• New refrigerant line set
• New disconnect and whip
• Thermostat upgrade (smart thermostat)
• Permit and inspection

Bid Sheet

Line Item	Cost	Markup	Sell Price
Equipment
3-ton 16 SEER2 condenser	$2,150	35%	$2,903
Matching evaporator coil	$680	35%	$918
Smart thermostat	$135	50%	$203
Materials
Refrigerant line set (30ft)	$185	45%	$268
Disconnect + whip	$65	100%	$130
Electrical wire, fittings	$45	100%	$90
Refrigerant (R-410A, 8 lbs)	$96	50%	$144
Misc (tape, mastic, hangers, screws)	$35	100%	$70
Pad / mounting hardware	$40	75%	$70
Labor
Lead installer — 6 hrs @ $47.50 burdened	$285	—	$285
Helper — 6 hrs @ $32.00 burdened	$192	—	$192
Overhead allocation
12 billable hours @ $45.14/hr	$542	—	$542
Permit	$125	0%	$125
Subtotal (Cost)	$4,575
Subtotal (Sell before profit)			$5,940
Profit margin (15%)			$891
Total Bid Price			$6,831

Breaking Down the Numbers

• Total cost to you: $4,575
• Bid price to customer: $6,831
• Gross profit: $2,256
• Gross margin: 33%

“Wait – 33% gross margin on a replacement? You said the target is 45-55%.”

You’re right. This bid is on the lean side. To hit 50% gross margin on this job, the bid price would need to be about $9,150. Whether your market supports that depends on your area, your reputation, and how you present the proposal.

This is exactly why tiered pricing matters (more on that below). Your base option might be at a 33-40% margin, but your premium option, with a variable speed system, extended warranty, and IAQ add-ons, might carry a 55% margin. 

The blend across options is what gets your average to the target.

Commercial Bidding in 2026

Commercial HVAC bidding is a different animal from residential. The money is bigger, the timelines are longer, and the paperwork can bury you. There are three main commercial bidding structures:

Plan-and-Spec (Hard Bid)

The mechanical engineer designs the system. You get drawings and specifications. You price exactly what’s on the plans without substitutions unless you submit a formal request. The lowest responsible bidder typically wins.

Pros:

• Clear scope of work, you know exactly what’s required
• Level playing field, everyone is bidding the same spec
• Good for companies that excel at quantity takeoffs and tight estimating

Cons:

• Purely price-driven,  hard to differentiate on quality or service
• Tight margins (often 5-10% net)
• Change orders are your only chance to recover if plans have errors
• Bid bonds and performance bonds are required on larger jobs ($25K+)

Design-Build

The customer hires you to both design and install the HVAC system. You’re responsible for load calculations, equipment selection, duct design, and installation. More risk, but much more margin.

Pros:

• Higher margins (you control the spec)
• Can build in value engineering from the start
• Relationship-driven, not just price-driven
• Fewer competitors (not every contractor can design)

Cons:

• More liability (design responsibility is on you)
• Requires engineering capability or consultant relationships
• Longer sales cycle
• The customer may still get competing design-build proposals

Negotiated Bid

You’re invited to bid based on an existing relationship or prequalification. The scope may be somewhat flexible, and there’s room for back-and-forth on pricing and approach. Common in repeat commercial accounts and preferred vendor arrangements.

Pros:

• Less competition
• Room to negotiate scope and terms
• Often leads to ongoing work
• Best margins of the three methods

Cons:

• Requires established relationships and reputation
• Can be politically driven
• Scope creep risk if terms aren’t clear

Commercial Bid Essentials Checklist

Before you submit any commercial bid, make sure you’ve accounted for:

• Bid bond (typically 5-10% of bid amount)
• Performance bond and payment bond (if required)
• Prevailing wage compliance (on public projects)
• Mobilization and staging costs
• Crane or rigging for rooftop equipment
• Coordination with other trades (electrical, plumbing, controls)
• Commissioning and startup time
• As-built drawings and O&M manuals
• Warranty terms (commercial often requires 1-2 year full warranty)
• Retention (GC typically holds 10% until project closeout, budget for the cash flow impact)

For a look at what’s shaping commercial HVAC in 2026, including technology shifts and regulatory changes, see HVAC industry trends.

Residential Bidding in 2026

Residential bidding is faster, more relationship-driven, and involves a completely different sales dynamic than commercial. The homeowner is standing right there. Your presentation matters as much as your price.

Replacement Bidding

Replacements are your bread and butter. The homeowner’s system has died or is on its last legs, and they need a solution, usually within days, not months.

What makes a winning residential replacement bid:

1. Show up fast. The first contractor to present a proposal wins 60% of the time. Speed matters more than perfection.
2. Offer multiple options. This is backed by data, presenting that 4+ options increase your close rate to 52%, compared to 42% for single-option proposals. Structure your options like this:
   • Good: Base system, meets code, reliable brand, standard warranty
   • Better: Mid-tier efficiency, upgraded thermostat, extended parts warranty
   • Best: High-efficiency variable speed, smart thermostat, 10-year labor warranty, IAQ add-on
   • Premium: Top of the line, zoning, whole-home IAQ, maintenance agreement bundled
3. Include financing. Monthly payment options remove the sticker shock. A $9,000 system becomes “$127/month for 84 months” and suddenly feels manageable.
4. List everything that’s included. Homeowners have no idea what goes into an installation. Spell it out: permits, disposal of old equipment, line set, disconnect, thermostat, code upgrades, drywall patching, every detail justifies your price.

New Construction Residential Bidding

New construction residential is spec-driven and builder-controlled. You’re bidding against other subs, and the builder cares about three things: price, schedule, and reliability.

Key differences from replacement bidding:

• Pricing is per-unit or per-plan, not per-customer
• Margins are thinner (35-50% gross)
• Volume commitments can offset lower margins
• Rough-in and trim-out are separate phases, price both
• Builder relationships are everything; one good builder account can fill your schedule for years

How to Price Competitively Without Undercutting

“I keep losing bids to the cheap guy.” We hear this constantly. And the answer is never to match the cheap guy’s price, because the cheap guy is either going broke slowly or cutting corners. 

Here’s how to compete on value instead of price:

Tiered Pricing (Good / Better / Best / Premium)

We covered this above, but it deserves emphasis. Tiered pricing does three things:

1. Anchors the customer’s perception. When the premium option is $14,000, the “better” option at $9,500 feels reasonable.
2. Let the customer choose their own comfort level. Nobody likes being told there’s only one option.
3. Pushes your average margin up. Even if most customers pick “better,” that option carries a higher margin than if you’d only offered one price.

Value Stacking

Every line item that adds perceived value without proportional cost is a value stack. Examples:

• Extended labor warranty (costs you very little in actual claims, huge perceived value)
• Priority service agreement for the first year (drives recurring revenue)
• Smart thermostat included ($135 cost, $300+ perceived value)
• Free first-year maintenance (gets you back in the home, generates future work)
• Written energy savings estimate (shows ROI, justifies higher-efficiency option)

Financing Partnerships

If you’re not offering financing in 2026, you’re leaving 20-30% of potential jobs on the table. Partner with a lender (GreenSky, Synchrony, Hearth, or your local credit union) and present monthly payments alongside the total price on every proposal.

The math: A $9,500 system at 7.99% for 84 months = $148/month. Most homeowners can stomach $148/month. Many of them can’t stomach writing a $9,500 check. Same job, same price, completely different psychology.

Bid Follow-Up Strategy

Here’s the section no other HVAC bidding guide covers, and it might be the most valuable thing on this page.

Most HVAC contractors submit a bid and then… wait. 

Maybe they call once. Maybe they don’t. And they wonder why their close rate is stuck at 30%.

Data from sales research consistently shows that 80% of deals require 5+ touchpoints, but most salespeople give up after 1-2. In HVAC, the follow-up gap is enormous, and it’s a competitive advantage hiding in plain sight.

The 48-Hour / 1-Week / 2-Week Follow-Up Cadence

48 Hours After Proposal:

Call (don’t text). The script is simple:

“Hi [Name], this is [You] from [Company]. I’m just calling to see if you had a chance to look over the proposal I left and if you have any questions about the options. No pressure at all — I just want to make sure everything makes sense.”

This call is about answering questions and removing objections, not closing. 70% of the time, the customer hasn’t even looked at the proposal yet. That’s fine. You’re now the contractor who followed up, which puts you ahead of the two guys who didn’t.

1 Week After Proposal:

Text or email. Keep it brief:

“Hey [Name], just checking in on the AC proposal. I’ve got my schedule filling up for [month], so I wanted to make sure we can lock in your preferred installation date if you’re ready to move forward. Happy to adjust anything on the proposal if needed.”

This creates gentle urgency without being pushy. It also opens the door for negotiation — some customers want to say yes but need a small concession to feel good about it.

2 Weeks After Proposal:

Final follow-up. Call or text:

“Hi [Name], I know things get busy, so I just wanted to touch base one more time on the HVAC proposal. If you’ve decided to go a different direction, totally understand — but if you’re still considering it, I’d love to help. I’m offering [small incentive — free thermostat upgrade, free first-year maintenance, etc.] for installations booked this month.”

This is your last outreach. If they don’t respond, move on. But you’d be surprised — I’ve won jobs on this third follow-up that I would’ve never gotten if I stopped after the first call.

Track Everything

You can’t improve your follow-up if you don’t track it. Every bid should be logged with: date sent, follow-up dates, customer responses, and outcome (won/lost/no response). 

This data tells you your close rate, your average sales cycle, and where deals are falling off.

This is where a field service management platform like FieldCamp becomes essential. You can create and manage estimates in the field and use FieldCamp’s estimating tools to build proposals with your pre-set price book bundle, so every bid is consistent, accurate, and sent before the competition.

Bid-to-Win Ratio Benchmarks

Your bid-to-win ratio (also called close rate or win rate) tells you how many bids you submit for every job you win. It’s one of the most important KPIs in your business, and most contractors have no idea what theirs is.

What’s a Good Win Rate?

Bid Type	Target Win Rate	What It Means
Residential replacement	35-50%	You’re in a strong position if you hit 40%+
Residential new construction	20-30%	Builder-driven, more competition
Commercial plan-and-spec	10-20%	Large bid pools, lowest price wins
Commercial design-build	25-35%	Fewer competitors, relationship-driven
Commercial negotiated	50-70%	You’re the preferred vendor
Overall healthy benchmark	15-25%	Across all job types combined

How to Improve Your Win Rate

If your win rate is below 15%:

• You’re either too expensive for your market, bidding on the wrong jobs, or your proposals are weak
• Audit your last 20 lost bids: was it price, timing, or presentation?
• Consider narrowing your focus to job types where you’re most competitive

If your win rate is above 40%:

• You’re probably too cheap. Seriously. If you’re winning nearly half your bids, you have room to raise prices.
• Test a 10% price increase on your next 10 bids and track the results

The 4+ Options Effect: Contractors who present 4 or more options on proposals close at a 52% rate, compared to 42% for single-option proposals (ACHR News). 

That’s a 24% improvement in close rate just from restructuring how you present the same information. This is the single highest-ROI change you can make to your bidding process.

Speed to quote matters too. The first contractor to present a professional proposal wins the job more often than not. If it takes you 3 days to get a bid out after a site visit, you’re losing to the company that sends theirs the same day. 

FieldCamp lets you build and send proposals right from the job site, so you never lose a bid to a slow turnaround.

For more strategies on getting in front of the right customers in the first place, read HVAC lead generation.