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  1. Home
  2. Frederick, MD
  3. May's Heating & Air Conditioning

May's Heating & Air Conditioning

May's Heating & Air Conditioning is a HVAC provider serving Frederick, MD. Rated 5.0★ with 927 Google reviews. See services, review signals, and request a quote.

5.0★ (927 reviews)HVACFrederick, MD
On this page▾
  1. 1.Company overview
  2. 2.Photos
  3. 3.What customers say
  4. 4.Key highlights
  5. 5.Explore nearby research
  6. 6.Frequently asked questions

Company overview

  • TradeHVAC
  • Service areaFrederick, MD
  • Google rating5.0★ (927 reviews)
  • Phone(301) 660-1400
  • Address8420 Gas House Pike DD, Frederick, MD 21701, USA

Photos

  • May's Heating & Air Conditioning photo 1
  • May's Heating & Air Conditioning photo 2
  • May's Heating & Air Conditioning photo 3
  • May's Heating & Air Conditioning photo 4
  • May's Heating & Air Conditioning photo 5

Photos from May's Heating & Air Conditioning, Jordan M

What customers say

★★★★★

“Service was top-notch from beginning to end. Unfortunately, we tried a repair that did not fix the heat due to the HVAC system being so old. Ultimately, we decided to get a new unit rather than contin…”

— Margaret Williams, 4 months ago
★★★★★

“Karen and Brian were excellent. They provided same-day service, and Brian took the time to carefully investigate a noise issue I initially thought was vent-related, even after realizing it wasn’t an H…”

— Mariana Bryant, 3 months ago
★★★★★

“Highly recommend Todd M. at May's. He did an amazing job fixing the ongoing issues I was experiencing from a poor installation completed by another HVAC company. He showed up early for appointments an…”

— Melissa Jester, 2 months ago
★★★★★

“May's replaced our existing AC system with a high efficiency SD Heat Pump with propane backup. The job included removing the air handler in the attic and exterior compressor unit and replacing the ent…”

— James Hauver, 2 months ago
★★★★★

“May's Heating and AC is truly the Best! We recently moved and after having May's Heating & AC we contacted them for our annual service. Today Todd M arrived on time he was extremely professional, frie…”

— Joe Wiegner, 5 months ago

Key highlights

Strengths

  • Highly rated (5.0★ average)
  • Large review volume (927 reviews)

Things to ask

  • Confirm availability for your area and timeline
  • Ask about warranty terms on parts and labor
  • Request a written estimate before work begins
  • Ask about payment plans or financing

Explore nearby research

  • Frederick, MD HVAC pros
  • Best HVAC in Frederick
  • HVAC cost in Frederick
  • Best HVAC in Baltimore, MD
  • Best HVAC in Columbia, MD
  • Best HVAC in Germantown, MD
  • Best HVAC in Silver Spring, MD

Frequently Asked Questions

  • What services does May's Heating & Air Conditioning offer?

    May's Heating & Air Conditioning provides: HVAC diagnosis, repairs, and full system installs. They serve residential and commercial customers in Frederick, MD.

  • What is May's Heating & Air Conditioning's rating?

    May's Heating & Air Conditioning has a 5.0 out of 5 star rating based on 927 Google reviews.

  • Is this company licensed in Maryland?

    All listed providers have a verified Maryland contractor license at time of publication. You can verify on the Maryland Department of Labor — Board of Heating, Ventilation, Air-Conditioning, and Refrigeration Contractors (HVACR Board) lookup at https://www.dllr.state.md.us/cgi-bin/ElectronicLicensing/OP_Search/OP_search.cgi?calling_app=HVAC.

  • Does May's Heating & Air Conditioning offer emergency service?

    Contact them directly to ask about emergency availability and after-hours service.

  • How do I request a quote?

    Use the CTA below to submit your ZIP. You can message this company alongside two or three other local pros for easy comparison.

✓ Licensing verified 2026-04-23. Reviews refreshed 2026-04-23.

Licensing data: Maryland Department of Labor — Board of Heating, Ventilation, Air-Conditioning, and Refrigeration Contractors (HVACR Board) · Company data: verified business records + Google Business profile

See our editorial standards · Report inaccurate info about May's Heating & Air Conditioning

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