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Company Facts
McCullough Heating, Air Conditioning & Plumbing at a Glance
The work
- Best for
- Austin homeowners who want an established company with 24/7 live answering
- Primary service
- HVAC
Where
- Headquarters
- Austin, TX
- Service area
- Austin
- Emergency service
- Yes, 24/7
Money and guarantees
- Free estimates
- Yes
- Financing
- Available
- Workmanship warranty
- 100% satisfaction guarantee (specific redo/refund terms not published)
Editorial Review
Our Take on McCullough Heating, Air Conditioning & Plumbing
Under 72-month financing and a 24/7 live answering line, McCullough leans on nearly 50 years in the Austin market rather than being the cheapest name in the phone book. The dual Carrier and Mitsubishi certification is a genuine advantage for anyone weighing a ductless system.
Best for: Austin homeowners who want an established company with 24/7 live answering
What We Like
- 4.8 rating from more than 3,800 Google reviews, read September 20, 2026
- Operating in Austin since 1977, with a Master Plumbing License (M-45480) and TACLA HVAC license (136473E)
- 24/7 live answering, not an automated system, for after-hours calls
- 0% financing for up to 72 months on new HVAC installs
- Certified to install both Carrier and Mitsubishi Electric systems, covering ducted and ductless options
Things to Consider
- Flat-rate pricing at a company this size can run above a smaller outfit's hourly rate on simple repairs
- Service area stretches to Georgetown and Dripping Springs, so ask about arrival windows outside central Austin
- Specific terms of the satisfaction guarantee, what counts as a redo versus a refund, are not published online
Google Reviews for McCullough Heating, Air Conditioning & Plumbing
Customer ratings shown here come from Google. They are separate from our editorial review above.
Google rating
4.8
Based on 3829 Google reviews
Review data updated September 20, 2026
Rating Distribution
- 5 stars94%
- 4 stars3%
- 3 stars1%
- 2 stars1%
- 1 star2%
iAbout this distribution
The distribution reflects the 3829 Google reviews available when this profile's review data was last refreshed on September 20, 2026. Ratings and counts change continuously on Google, so figures here may lag the live profile slightly. We publish only the values returned by the source, never estimates for missing bands.
Recent Google Reviews
- Meg Shaw5.0Matthew S. was very thorough, patient, professional and knowledgeable. And a pleasant person to have in our home. My HVAC unit was recently installed by McCullough, so there was no charge.September 2026Google
- Oscar Garcia5.0Friendly, professional, honest assessment and AC repair service. Thank you.September 2026Google
- Todd McDowell5.0I just had a free plumbing inspection at our house as part of being a Comfort Club member with McCullough. James Farr was the plumber who did the inspection and his visit was very informative and pleasant, as well. He was very thorough and assessed our plumbing in ways I wouldn't have thought of, checking the usual areas but also water quality and hardness. I recommend this service to anyone, especially if you live in an older home, like we do.September 2026Google
- Brenda Franke5.0When my AC went out, McCullough was recommended to me. I am glad they were. From the man who came out to check it, Raul, the man who came to explain my options, Evan, to the two that came out and to install it, Miguel and co-worker (sadly I didn't catch his name), it was a quick and smooth experience. I will be recommending McCullough to any and everyone with HVAC issues.September 2026Google
- Coty Rosson5.0Jaiden was very helpful and thorough. Instead of just identifying the obvious issue he took the time to try to look into the cause, and was willing to work around my schedule for the follow up repairs.September 2026Google
- Kendra Friel5.0James was very knowledgeable and his recommendations and repairs fixed our water pressure issues immediately. Quick service and fair pricing too. We definitely recommend James and McCulloughSeptember 2026Google
Ranked#2of 10 hvac companies in Austin, TXre-checked September 2026
Editorial Ranking
Why McCullough Heating, Air Conditioning & Plumbing Made Our Top 10
It holds position 2 in 10 Best HVAC Companies in Austin, TX (2026).
See the Full Austin RankingPositions cannot be bought
Services Offered
Areas Served
Based in Austin, TX.
iAbout service coverage
Coverage is as the business describes it, cross-checked against where its recent documented work is. A company will often travel beyond the areas listed here for a large job and decline a small one at the same distance, so confirm your address before scheduling.
About McCullough Heating, Air Conditioning & Plumbing
McCullough Heating, Air Conditioning & Plumbing has worked in Austin since 1977, and the Google review record, 4.8 stars from more than 3,800 ratings, reflects a company that has stayed in business by showing up. The company holds a Texas Master Plumbing License (M-45480) and a TACLA air conditioning contractor license (136473E), and installs Carrier and Mitsubishi Electric equipment, covering both standard split systems and ductless mini-splits for additions or older homes without existing ductwork.
What separates McCullough from a smaller outfit is the 24/7 live answering line. A person picks up the phone at any hour, not a call center reading from a script, and reviewers mention technicians such as Matthew, Raul, and Miguel by name for showing up on schedule and explaining the diagnosis before starting work. In a city where a July afternoon without air conditioning is more than an inconvenience, that responsiveness carries real weight.
On cost, McCullough offers 0% financing for up to 72 months on new system installs, along with free instant replacement quotes online. That financing window runs longer than many Austin competitors offer, worth weighing against a lower sticker price elsewhere. The company also backs its work with a satisfaction guarantee, though the specific terms, what triggers a redo versus a refund, are worth asking about directly rather than assuming.
The service area stretches from central Austin out to Georgetown, Round Rock, Westlake, Cedar Park, Dripping Springs, Leander, and Pflugerville, a wide territory for a same-day emergency call. Ask about the realistic arrival window for your specific neighborhood before booking anything urgent.
McCullough suits an Austin homeowner who wants an established company with a real phone line answered at 2 a.m. and financing for a full system replacement. It suits less well someone hunting for the single cheapest hourly rate in town, since a company with this much infrastructure typically prices closer to flat-rate than a one-truck operation. Before booking, confirm the TACLA license number against the Texas Department of Licensing and Regulation's public lookup, get the financing terms in writing, and ask whether the emergency dispatch fee is credited toward the repair.
iWhere this information comes from
Company history, ownership and capability details on this page are provided by the business and reviewed by our editors for plausibility and consistency. They are not the same as the credentials block, where each item carries its own verification status and source.
Credentials
- Master Plumbing LicenseTexas State Board of Plumbing Examiners · M-45480Reported
- Air Conditioning Contractor LicenseTexas Department of Licensing and Regulation · TACLA 136473EReported
iWhat verified means here
Verified means we checked the credential against the authority that issues it and recorded the date. Reported means the business told us and we could not independently confirm it. We publish both, labelled, rather than dropping what we could not check.
Reputation by Source
We show each source separately rather than blending them into a single score, because they measure different things.
Google
4.8/ 5
3829 customer reviews
TenBestFind
Editorially reviewed
Ranked #2 in Austin hvac, September 2026
Company Pricing & Estimates
What this company publishes about its own pricing.
- Free estimates
- Yes
- Financing
- Available
- Emergency callout
- Available 24/7
- Workmanship warranty
- 100% satisfaction guarantee (specific redo/refund terms not published)
Local Market Pricing
What Austin homeowners generally pay, independent of this company.
- AC replacement, existing ductwork
- $5,500–$9,500
- Heat pump replacement
- $7,500–$13,800
- Furnace replacement
- $3,500–$7,500
- Repair call
- $150–$600
Project Photos
Business-submitted, reviewed by our editors
Project Videos
From the company's own channel and website. Loads only when you press play.
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McCullough Heating, Air Conditioning & Plumbing FAQs
Does McCullough answer the phone for emergencies after hours in Austin?
Yes. The company advertises 24/7 live answering, meaning a person takes the call rather than a machine, at any hour. Ask about the after-hours dispatch fee and expected arrival window when you call, since response times can vary by neighborhood across McCullough's wide Austin-area service territory.
Is McCullough licensed for both plumbing and HVAC work in Texas?
Yes. The company holds a Texas Master Plumbing License (M-45480) and a TACLA air conditioning contractor license (136473E). You can confirm both are current through the Texas Department of Licensing and Regulation's public license search before booking.
What financing does McCullough offer on a new AC or furnace?
McCullough advertises 0% financing for up to 72 months on new system installs, subject to credit approval. Get the exact terms, including the interest rate after any promotional period, in writing before signing, and compare against at least one other quote.
Is McCullough Heating, Air Conditioning & Plumbing licensed and insured?
We checked 0 of 2 credentials against the issuing authority. Verified items carry the date we checked; reported items are what the business told us and we could not independently confirm.
What areas does McCullough Heating, Air Conditioning & Plumbing serve?
Austin. Coverage is as the business describes it, cross-checked against where its recent documented work is. Confirm your address before scheduling, particularly at the edge of a service area.
Does McCullough Heating, Air Conditioning & Plumbing offer emergency service?
Yes, the company lists emergency availability. Response time depends on demand, and after a storm every company in the market is stretched.
What warranty do they offer?
100% satisfaction guarantee (specific redo/refund terms not published). There are usually two warranties on a job: the manufacturer covers materials, the contractor covers workmanship. Get both in writing and check whether the workmanship coverage transfers if you sell.
How was this profile built?
Credentials come from issuing authorities, ratings from the company's Google Business Profile with the date we read them, and the editorial take from our own review of estimates, warranty documents and public feedback. Anything the business told us is labelled as reported.
Can a business pay to improve its profile?
A business can subscribe to manage its own listing details, and it can buy a labelled sponsored placement. Neither changes a ranking position or the editorial assessment on this page.
Is Something Incorrect?
Business information changes. Tell us about an address, phone, website, service area, credential or ownership change, or let us know if this company has closed.
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About This Business Profile
- Last reviewed
- September 2026
- Profile last updated
- September 21, 2026
- Google review data updated
- September 20, 2026
- Sources checked
- Issuing authorities, Google Business Profile, Company website
- Sponsorship status
- No commercial relationship