Cornerstone Services
One Call Covers Every Trade in Your Home
Most home service calls end with a phone number for the next contractor. Ours don’t. Cornerstone Services handles electrical, plumbing, heating, air conditioning, cleaning, handyman work, and home modifications under one roof, so you’re coordinating with one company instead of juggling three. Every trade runs through the same pricing structure and the same signed workmanship warranty, so the way we show up for an outlet repair is the way we show up for a boiler install or a deep clean. That’s the model we built, and it’s why customers across southern New Hampshire and northern Massachusetts keep calling us back.
We’re available 24 hours a day, 7 days a week, with same-day scheduling available for jobs that can’t wait. Call Cornerstone Services at (603) 874-1402 to schedule service or get answers from our around-the-clock staff.
1,250+ Five-Star Reviews & Counting
We let our work speak for itself. From quick repairs to major installs, our customers say it best.
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Paul Quinn did electrical work for me and he was the best!Nicola Sullivan
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Michael with Cornerstone Services was excellent to work with.Jamie Fasbender
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He was very professional and explained all that he was doing.Mary Duford
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Showed up as agreed and was very informative.John Cote
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Fast response and very professional.Anne Butterworth
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On time. Thorough. Kind. Positive attitude in this awful heat.N N
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Cornerstone came promptly and fixed them.Marilyn Frank
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He and his partner PJ worked quickly and efficiently to solve a dryer vent issue we had been experiencing.Pierre Thelusma
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Took care of our electrical needs with ease!Peter Larocque
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He was quick, thorough, professional, and made sure everything was done right.Jess Nichol
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10/10 experience and so happy we got in touch with him and this company!Anthony Capozzi
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They were so neat, you would never know there was a problem.Bill Mullen
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Paul is always friendly, polite, and professional.Cindy Marcin
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Paul was efficient and expert at correcting the problem and ensuring all was well.Woodrow Cook
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He went above and beyond for me when some unforeseen issues arose with my bathtub install.Susan Hevey
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Tech was on time, friendly, and competent.Vincent JJ Balukonis
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He was very thorough and quickly corrected the issue.Gary Chisholm
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Josh was very prompt with his services and explained things clearly.Kim Mcanany
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Arnold is a pleasure to work with.Esther Bradbury
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Jason is always great and knowledgeable and friendly.Mark Duell
Why Salem Homeowners Trust Us
When you call Cornerstone Services, you’re not getting an estimate that grows once the work starts. We price by the job, not by the hour. The number we quote is the number you pay at completion, with no adjustments, no hourly overruns, and no hidden fees tacked on at the end. Every job we finish is backed by a signed warranty under our quality assurance policy, and that coverage applies across every trade we handle, not just selected services.
Every technician and cleaning worker we send to your home or business has passed a background check before setting foot on your property. It’s a standard we hold across every service line, so you don’t have to think twice about who’s coming through your door.
A Division Built for Accessibility
One service line that sets us apart is our dedicated home modifications division. We serve elderly and disabled residents with accessibility upgrades that aren’t commonly offered alongside licensed electrical, plumbing, and HVAC work. Wheelchair ramp installation, grab bar installation, stairlift installation, kitchen modifications for seniors, and smart home setup for elderly and disabled clients are all available through the same company managing your other home services. When a project crosses trade lines, you’re still making one call.
Financing options are available across our service lines, and we run rotating monthly promotions that can apply to scheduled work. We serve homes and businesses throughout Rockingham, Hillsborough, and Essex Counties.
Ask about current offers when you call (603) 874-1402.
Book Your Service
ONE NUMBER TO CALL. EVERY SERVICE YOUR HOME NEEDS.
Cornerstone's Monthly Specials
- Salem, NH
- Derry, NH
- Londonderry, NH
- Hudson, NH
- Windham, NH
- Pelham, NH
- Plaistow, NH
- Manchester, NH
- Concord, NH
- Atkinson, NH
- Methuen, MA
- Andover, MA
- North Andover, MA
- Haverhill, MA
- Amesbury, MA
- Newburyport, MA
- Acton, MA