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Licensed & insured·Upfront flat-rate pricing, no surprises
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Tulsa, OK · 24/7 · professional, precise

Your home, always just right.

Comfort should be something you stop thinking about, in July and in January. ProThermal sizes every system with a real load calculation, installs to manufacturer spec, and agrees one honest, flat price with you before any equipment is ordered.

No cooling? No heat? 24/7 emergency line, call now

Book a free estimate or call (918) 317-4627
★★★★★ 5.0530+ Google reviews
24/7 serviceTulsa family company
OK Mech. Lic. #088817Licensed · bonded · insured
Living room preview, try a comfort setting Comfort studio
71° · Just rightProThermal No. 02, comfort
#3250A0
The ProThermal deck, tap a chipComfort help →
Tap a temperature and the whole site wears its mood, live. Book a free estimate
OK Mech. Lic. #088817American Standard dealerLicensed & insured24/7 emergency service
Two condenser units installed by ProThermal in Tulsa
Real ProThermal workA clean two-system install, set level and piped tight
5.0★
530+ Google reviews
24/7
Emergency service
0★
530+ reviews
100%
Best experience, or you do not pay
★★★★★

"Very clean install. Professional and above and beyond."

Stephanie McCarty · via Google
This season's deck
What we do

One crew for your whole home's air.

From a single ductless mini-split to a whole-home system, we size, install and maintain, all under one roof. Every service below carries the same flat-rate promise.

01AC InstallationSized by load calc, installed quiet, cold by design. 02AC RepairDiagnosed same-day, fixed with OEM parts. 03Furnace InstallationHigh-efficiency furnaces, sized and dialed in. 04Furnace RepairNo-heat calls jump the line, warm by tonight. 05Heat Pumps & Mini-SplitsOne system, heating and cooling, whisper-quiet. 06Ductwork & VentingDucts sealed and balanced, every room reached. 07Indoor Air QualityFiltration and fresh-air systems that you can feel. 08Maintenance PlansTune-ups on a schedule, priority when it matters. +All services, one promiseEvery job below carries the same flat-rate promise, in writing.
Straight pricing

One number. In writing. It doesn’t move.

No hourly meter, no surprise line items, no “while we’re at it”. You approve one flat number before a single unit is ordered, and that is the number you pay.

Book your free comfort assessmentor call (918) 317-4627
01
The assessment

We visit, measure every room and listen to what you actually want. Free, and it stays free.

02
Your flat number

Equipment, labor and permit, one line, one price. Approved by you before anything starts.

In writing03
Signed & guaranteed

The number lands in writing with a simple promise: if it is not the best HVAC experience you have had, you do not pay. If it isn’t right, we make it right.

The breakdown

What moves the number.

No mystery math. Four things decide what a comfort system costs, and we walk every one with you before the quote lands.

System & efficiencyThe equipment your load calculation calls for, and how efficient you want it to run. Right-sized always beats oversized.
Ductwork & accessThe condition of your existing ducts, and how easily the furnace or air handler can be reached. Tight crawlspaces and attics take longer.
Your existing setupMatching the electrical and refrigerant lines already in place, and hauling the old equipment out clean.
Timing & seasonFlexible scheduling in the off-season costs less. A no-heat or no-cool emergency can be met, priced plainly.

Whatever the mix, it lands as one flat number, in writing, and it does not move.

On the job

Real homes, real seasons, kept just right

From a heat-wave AC rescue to a whisper-quiet heat pump and ducts that finally reach the back bedroom, this is the comfort we build across Tulsa every day.

Comfortable living room cooled by a new AC system
Living room, just right
Sized · silent
 Bright living room with even, balanced airflow
Every corner, even
Ducts balanced
 Open-plan home interior with a flawless finish
January, cozy
96% furnace
 Commercial storefront exterior retrofitted
July, handled
Long gentle cycles
 Warm, evenly heated dining room in January
Dinner at 71°
Comfort Plan home
The temperature you picked

From July heat
to just right.

71° · Just rightProThermal No. 02 · Comfort · #3250A0

Sized with a real load calculation, tuned register by register, until every room in the house agrees with the thermostat.

Book your free assessment
Why ProThermal

The company Tulsa calls back.

Two decades of doing it the honest way: honest sizing, quality equipment, a fair price, and a crew who treats your home like their own.

Meet the company
01

Upfront flat pricing

You approve the exact price before we start. No hourly meter, no surprise line items at the end.

One number · in writing
02

On time, done clean

We start when we say, protect your floors and furniture, and leave the site spotless every evening.

Spotless every evening
03

Straight, honest quotes

You approve the exact number in writing before any work starts, and it does not move.

It doesn’t move
04

Guaranteed work

Every project is backed by a simple promise: if it is not the best HVAC experience you have had, you do not pay. If it's not right, we make it right.

Written warranty
Peace of mind

Guaranteed in writing, every single job.

A written workmanship warranty on every project. If a finish isn't right, we come back and make it right, no fine print, no runaround.

OK Mech. Lic. #088817 Licensed & insured NATE-certified Bonded Background-checked crews
Straight payment

One number, no surprises.

The flat price you approve is the price you pay. No deposit games, no hourly meter, no surprise line items at the end, just the number we shook on, in writing.

One flat numberIn writingNo hidden fees
The crew

The same hands, start to finish

No rotating subcontractors. Background-checked HVAC techs who show up on time, protect your home, and treat every room like their own.

01
Your lead HVAC techOwner · on every job

The same person who walks your home and quotes the job is on the ladder start to finish, no handoffs to a sub you never met.

02
Install leadSizing, setting & venting
03
Diagnostics & serviceGauges, meters & fixes
04
Project managerYour point of contact

When your site goes live, your crew's real names and photos replace these — we never use stock people.

Care Plan membership

Keep every season comfortable.

An annual walkthrough, free touch-up visits, priority scheduling for your next project, and members-only pricing, for less than a coffee a week.

See what’s included
ProThermal Comfort PlanMember
  • Spring AC + fall furnace tune-ups
  • Priority no-heat / no-cool response
  • 15% off future projects
  • Priority scheduling & your equipment history and filter sizes
Everything above, includedLess than a coffee a week
Cancel anytime · no lock-in, no fine print
Neighbors trust us

Rated 5.0 by 530+ homeowners

4.9★★★★★On Google
reviews
4.9★★★★★Google · 530+ reviews
4.8★★★★★Yelp · 340+ reviews
4.9★★★★★Facebook · 210+ recommend
AccreditedBBB · A+ rating
71° · Just right
★★★★★

"Great expedient service, very clean install. Both Tristan and Bret were very professional and went above and beyond."

Stephanie McCartyvia Google
66° · Crisp
★★★★★

"I have already posted a review for the installation of the heating and air conditioning. That experience was a thoroughly good one."

Linda Giloolyvia Google
72° · Cozy
★★★★★

"ProThermal came right out for our annual inspection and was so incredibly thorough. Grant was awesome."

Lisa Svia Google
67° · Fresh
★★★★★

"Our system wasn’t cooling and the company we usually use couldn’t get anyone out until Thursday. ProThermal came through."

Lisa Bakkenvia Google
70° · Easy
★★★★★

"Communication and service was excellent with each of the technicians. Grant and James tested and diagnosed the system."

Robinvia Google
Where we work

Proudly serving the greater Tulsa area

A lot of our work comes from a neighbor who watched us comfort the house next door. If you're in the metro, we're just around the corner.

Rated by 530+
neighbors5.0

Free estimates · same-week scheduling · never a franchise

Find your city

Hours

  • Mon – SunOpen 24 hours
TulsaBroken ArrowBixbyJenksOwassoClaremoreSapulpaSand SpringsMannfordSand SpringsTulsaBroken ArrowBixbyJenksOwassoClaremoreSapulpaSand SpringsMannfordSand Springs
How it goes

From first call to done.

No mystery in the middle. This is the path the job actually takes, start to finish.

01
The in-home walkthroughfirst visit

A comfort tech comes out, walks every room, checks your existing equipment, ductwork, and electrical panel, and asks how the house actually feels through the seasons. No sales pressure, just measurements and questions.

02
The load calc and designmeasured

We run a Manual J load calculation on your square footage, windows, and insulation to size the system right instead of guessing. You get a written plan that lists the exact equipment, model numbers, and where every unit and vent lands.

03
Quote lands in writingin writing

One flat-rate quote, itemized, with the efficiency ratings and any Energy Trust of Oklahoma rebates spelled out. The number we write is the number you pay, and we walk it line by line before you sign anything.

04
Install weekjob days

A two- to three-person crew arrives when we said, lays down floor protection, and sets the equipment, refrigerant lines, and ductwork over one to two days. We pull the county permit and keep you posted at each stage.

05
Startup, walkthrough and warrantybefore we leave

We commission the system, verify airflow and refrigerant charge, and walk you through the thermostat and filter schedule room by room. You get the manufacturer warranty and our labor guarantee in a folder, and we haul off the old equipment and vacuum up before we go.

60 seconds

Get your free quote.

Three fields, no account, no pressure. We call back the same business day with a real number.

No spam, no reselling · prefer to talk? call us

Good to know

Questions, answered

Getting started
Do you charge for estimates?+
No. Written estimates for installs, repairs, duct work and comfort plans are always free, we visit, measure, talk through the options, and email you a clear, itemized quote with no obligation.
How soon can you start?+
Most estimates go out within a day, and typical projects are scheduled within one to two weeks. For urgent retrofits, before a move, a sale or an event, just tell us the date and we'll do our best to fit you in.
What does “upfront flat pricing” mean?+
Before any work begins, we give you one clear, flat price to approve, prep, materials and labor included. No hourly meter, no surprise add-ons at the end. You always decide before we start.
What should I do before you arrive?+
Nothing heroic. Clear a path to the furnace or air handler, note what the system is doing and when, and keep pets comfortable, we bring shoe covers and leave rooms as we found them.
Do you charge extra for evenings or weekends?+
No. The flat price for a job is the price. True no-heat and no-cool emergencies have one posted call-out fee, quoted on the phone before we roll.
Can you give a price over the phone?+
A realistic range, yes. The flat number lands after the assessment, in writing, before any equipment is ordered, that part never varies.
What happens during the free assessment?+
Load calculation, duct check, equipment health readings and a conversation about how you actually live in the house, then a plain-English plan with one flat number per option.
How fast can you get here?+
No-heat and no-cool calls jump the line, usually same-day. Planned work books within the week, with a live arrival text instead of a four-hour window.
Equipment, sizing & efficiency
What brands do you install?+
Major-manufacturer equipment we can still get parts for in fifteen years, matched to your house rather than a quota. Have a preference? We quote it.
How do you size a system?+
A room-by-room Manual-J load calculation, windows, insulation, orientation, the lot. Sizing from square footage alone is how houses end up clammy or short-cycling.
Will a new system lower my bills?+
Usually, and we will show the math honestly, efficiency ratings, your rates, realistic run hours. If payback is thin we say so, sometimes duct sealing is the better first move.
Do heat pumps really work here?+
Tulsa is near-ideal heat pump country, mild winters, real rebates. Cold-climate models heat comfortably well below freezing, with backup heat for the rare arctic week.
Do you handle permits and rebates?+
Both. Permits pulled and inspections met on every install, and we file the utility rebate and tax-credit paperwork with you before we leave.
What filter should I buy, honestly?+
A properly sized media filter beats any gadget, we write your exact size on the cabinet and put it in your file. Members get theirs swapped at every tune-up.
Comfort, ducts & the Care Plan
Why does one room never match the thermostat?+
Ducts, almost always. Leaky, crushed or unbalanced runs starve the far rooms. Sealing and balancing usually fixes it without touching the equipment.
Which temperature is right for my home?+
Tap through the Comfort Studio above, the whole page takes on the mood of each degree. Then set your real thermostat with us during the assessment.
Is the Care Plan worth it?+
For most homes, yes: an annual inspection, free scuff and touch-up visits, priority scheduling, and 15% off future projects typically pay for the membership the first time you use it, and keep every finish looking new.

Let's get your home to just right.

Book a free estimate in under a minute, or call and talk to a real person right now. Upfront pricing, licensed crews, no pressure.

Book a free estimate

Faster: text us a photo of your furnace or outdoor unit and we reply with a ballpark, usually same day.

or call (918) 317-4627
Call (918) 317-4627