Alamo, CA

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Discover top-rated home service professionals in Alamo, California. Browse 200 verified contractors for roofing, HVAC, plumbing, and more.

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Top Contractors in Alamo, CA

Showing 1-20 of 200 contractors

Sayman Mechanical Systems, Inc.

Sayman Mechanical Systems, Inc.

Alamo, CA

5(1 reviews)
HVAC
Hours
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Davis Plumbing

Davis Plumbing

Alamo, CA

5(38 reviews)

"He had my toilet up and running again within a half hour!"

Plumbing
Hours
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Diablo Valley Comfort Systems

Diablo Valley Comfort Systems

Alamo, CA

5(2 reviews)

"Very reasonable prices for parts, labor and expertise."

HVAC
Hours
Alaniz Mechanical Inc

Alaniz Mechanical Inc

Alamo, CA

5(10 reviews)

"Alaniz replaced our A/C compressor and had us up and running very quickly."

HVAC
Hours
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Arje Heating & Air , Inc

Arje Heating & Air , Inc

Alamo, CA

5(5 reviews)
HVAC
Hours
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Complete Plumbing

Complete Plumbing

Alamo, CA

5(142 reviews)

"Aaron was on time and cleared our clogged shower in <45 minutes."

PlumbingGeneral Contracting
Hours
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PolarTech

PolarTech

Alamo, CA

5(12 reviews)

"He is a trustworthy professional and charged a fair price."

HVAC
Hours
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HVAC
Hours
Freeway Mechanical

Freeway Mechanical

Alamo, CA

5(2 reviews)

"Super flexible and responsive, very happy with new HVAC system."

HVAC
Hours
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Evergreen IAQ

Evergreen IAQ

Alamo, CA

5(5 reviews)

"Really appreciated the thorough inspection, diagnosis and documentation!"

HVAC
Hours
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Attic Fix Pro

Attic Fix Pro

Alamo, CA

5(1 reviews)
HVACInsulationGeneral Contracting
Hours
LFP Roofing

LFP Roofing

Alamo, CA

5(10 reviews)

"His crew showed up on time and proceeded to do as promised."

Roofing
Hours
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PANDA HVAC

PANDA HVAC

Alamo, CA

5(13 reviews)

"The technicians are professional, friendly, punctual, and knowledgeable."

HVAC
Hours
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Plumbing Art Inc

Plumbing Art Inc

Alamo, CA

5(51 reviews)

"Tolley identified the shower issue quickly and fixed it in no time."

Plumbing
Hours
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Rooferserve Roofing

Rooferserve Roofing

81 N Jackson Way, Alamo, CA 94507

5(2 reviews)

"They showed up exactly on time and were fully prepared."

RoofingSidingHome Builder
Hours
Brothers Energy

Brothers Energy

Alamo, CA

5(2 reviews)

"They are reliable, knowledgeable, and truly care about their customers."

HVAC
Hours
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R L Ziegenbein Construction Co

R L Ziegenbein Construction Co

441 Oakshire Pl, Alamo, CA 94507

5(1 reviews)
RoofingSidingBathroom RemodelConcrete+2 more
Hours
Powell Mechanical

Powell Mechanical

Alamo, CA

5(166 reviews)

"They came out on Saturday on short notice and fixed my AC."

HVAC
Hours
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"Pricing was very fair, and we felt confident in the service we received."

HVAC
Hours
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Bay HVAC Alliance

Bay HVAC Alliance

Alamo, CA

5(2 reviews)

"The installation was completed quickly and very professionally."

HVAC
Hours
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Top Rated Contractors 2026

Alamo, CA

Every contractor shown for Alamo, California is listed with the rating and review count from its public Google Business Profile, so you can compare local professionals on the same basis. Businesses marked as claimed have confirmed their own details, which is not the same as a licence or insurance check. Confirm licensing and insurance directly, then request at least three written estimates before you hire in Alamo.

Frequently Asked Questions

Common questions about finding contractors in Alamo

Prices in Alamo depend on the trade, the size and complexity of the job, and the materials you choose. Small repairs often start in the low hundreds of dollars, while full replacements such as a roof, HVAC system, or kitchen can run from several thousand dollars upward. Request at least three written estimates for the same scope so you can compare local pricing fairly.

Start with the listings on this page, then confirm the licence directly with the licensing board that covers California. Requirements vary by trade: some states license general contractors, while others license only electrical, plumbing, and HVAC work. Ask for the licence number and verify it yourself before signing anything.

Most listings in Alamo are aggregated from public business data, including the Google Business Profile rating and review count shown on each page, and are not individually inspected by us. A listing marked as claimed simply means the owner has confirmed control of the business record; it is not a licence or insurance check. Always verify licensing, insurance, and references before you hire.

Costs in California depend heavily on the trade and the project. Labour rates vary by region, licensed trades such as electrical and plumbing usually cost more per hour than general labour, and emergency or after-hours work carries a premium. Statewide averages are only a starting point; get itemized quotes from local contractors for your exact scope.

Permit rules are set by the local authority that covers Alamo. Structural work, additions, and most electrical, plumbing, HVAC, and roofing replacements require a permit, while some cosmetic work does not. Ask who is pulling the permit and confirm it is issued in the correct name before work starts, because unpermitted work can complicate resale and insurance.

A deposit of roughly 10-30% of the contract price to cover materials is common in Alamo, with the balance tied to milestones in a written contract. Be cautious of anyone demanding full payment up front, large cash-only payments, or payment before the work is scheduled. A written payment schedule protects both sides.

Compare quotes on the same written scope of work, not on the bottom line alone. Check that each quote lists materials and brands, labour, permits, cleanup, and exclusions, and ask how change orders are priced. A bid that is far below the others usually means something has been left out.

A contractor contract in California should state the full scope, materials, total price and payment schedule, estimated start and completion dates, the licence number, how changes will be approved and priced, the warranty, and who handles permits and cleanup. Read it before signing and keep a copy.

Timelines in Alamo vary widely by trade and scope, from a same-day repair to several months for a major remodel. Weather, permit queues, and material lead times all affect the schedule. Ask each contractor for a written timeline and confirm how they handle weather or inspection delays.

Read the Google review excerpts shown on each listing for patterns rather than judging only by the star average. Also check the state or provincial licensing board for complaints, ask the contractor for recent local references, and confirm they carry insurance. A single bad review matters less than a consistent theme.

Pricing in Alamo reflects local labour rates, cost of living, demand, and how far crews have to travel. Dense metro areas and high-cost regions usually run above the state average, while smaller markets can be below it. The only accurate comparison is like-for-like quotes from contractors who work in Alamo.

Document everything in writing first, including photos, dates, and the contract. Ask the contractor to fix the issue under the warranty, and if they refuse, file a complaint with the California licensing board or consumer-protection office. You can also contact us so we can review the listing associated with that business.