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Indoor Air Quality Services in Salem, NH

IAQ Inspection & Air Quality Solutions

Salem, NH homeowners seal their homes tight through a long heating season. Everything trapped inside circulates through your HVAC system all winter long. Dust, pet dander, mold spores, and volatile organic compounds (VOCs) accumulate in ductwork and recirculate every time the system runs. At Cornerstone Services, we provide IAQ inspection, air duct cleaning, and whole-home air quality solutions for residential and commercial clients across Salem and southern New Hampshire. We’re backed by more than 1,250 five-star reviews on Google, HomeAdvisor, Facebook, and Yelp.

What separates us from standalone IAQ companies is that we handle electrical, plumbing, HVAC, cleaning, and handyman work under one roof. When an air quality assessment uncovers a problem that needs an HVAC or electrical fix, our team can handle it. There’s no second contractor and no separate appointment.

Ready to breathe easier? Cornerstone Services offers same-day scheduling for IAQ inspections and air duct cleaning in Salem, NH. Call us at (603) 874-1402 and we can work to get someone out quickly.

Targeted IAQ Inspections & Whole-Home Solutions

New Hampshire homes stay closed for months at a stretch. During that time, indoor air can exchange far less frequently than when windows are open, letting airborne contaminants build up to levels that can aggravate allergies, irritate asthma, and make your home feel stale. Our IAQ inspections for Salem homes and businesses identify what’s present in your air and ductwork: bacteria, mold, viruses, dust, pet dander, and other allergens that accumulate silently over time.

Depending on what the inspection finds, solutions fall into a few categories: air purification systems that integrate with your existing HVAC ductwork and treat air when the system runs; UV light treatment that targets biological contaminants, including viruses, bacteria, and mold, inside the air handler; humidity control through humidifiers or dehumidifiers (dry winter air and humid summer air each create their own set of problems); and air duct cleaning when buildup in the ductwork itself is the source. Because we operate across trades, any finding that requires electrical, plumbing, or HVAC follow-up can be addressed by the same team. There’s no juggling separate contractors.

Air Duct Cleaning in Salem, NH

Over time, dust, mold, bacteria, and debris accumulate in ductwork. That buildup can restrict airflow, increase strain on HVAC equipment, and circulate contaminants through your home or business when the system runs. Cornerstone Services’s air duct cleaning service removes what’s accumulated and helps restore the system to proper function. Air duct cleaning can also be a valuable part of a broader HVAC maintenance approach, addressing buildup before it contributes to bigger problems down the road.

Our technicians work through a structured three-step process:

  • Inspection: We inspect the full duct system to identify problem areas, blockages, and any sections requiring targeted attention before cleaning begins.
  • Removal of Contaminants: Advanced techniques remove dust, debris, and allergens from throughout the ductwork, not just the accessible sections.
  • Cleaning and Sanitization: Cleaning agents and sanitizing methods are applied to ductwork components, leaving the system clean and treated.

Every technician we send to your property has passed a background check before arrival. When the job is done, we clean up completely. Your property looks the way it did when we arrived. And every completed job is backed by a signed workmanship warranty under our quality assurance policy.

Why Salem Homeowners & Businesses Choose Cornerstone Services

There’s no shortage of IAQ companies serving southern New Hampshire. Here’s what makes our approach different for Salem customers:

  • Per-Job Pricing: We price by the job, not by the hour. The number we quote you is the number you pay when the work is done: no adjustments, no hourly overruns, and no hidden fees added at the end.
  • Signed Workmanship Warranty: Every job we complete is backed by a signed warranty under our quality assurance policy. You have documented protection on our work, not just a verbal promise.
  • Single-Provider Convenience: An IAQ inspection sometimes surfaces issues that need an HVAC technician, an electrician, or a plumber. Because we cover all those trades, any follow-up work stays with the same team, under the same pricing structure and warranty. Salem homeowners don’t have to start over with a new contractor.
  • Scheduling Built Around You: Same-day service is available for customers who need quick help. Financing options are also available; ask about current terms when you call. Monthly promotions on scheduled services rotate, so it’s worth asking what’s current when you book.

Cornerstone Services is dedicated to improving the air quality in your Salem, NH home or business with the same professionalism we bring to every trade we touch.

 

The Price We Quote is the price you pay at completion, every time.

No hourly overruns, no hidden fees. Every job is backed by a signed workmanship warranty.

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1,250+ Five-Star Reviews & Counting

We let our work speak for itself. From quick repairs to major installs, our customers say it best.
5
Based on 1,250+ reviews
    "Paul was by far the best one"
    Paul Quinn did electrical work for me and he was the best!
    Nicola Sullivan
    "Excellent to work with"
    Michael with Cornerstone Services was excellent to work with.
    Jamie Fasbender
    "He was very professional"
    He was very professional and explained all that he was doing.
    Mary Duford
    "A job well done!"
    Showed up as agreed and was very informative.
    John Cote
    "Fast response and very professional"
    Fast response and very professional.
    Anne Butterworth
    "Entire AC Unit Redone"
    On time. Thorough. Kind. Positive attitude in this awful heat.
    N N
    "I couldn’t be happier"
    Cornerstone came promptly and fixed them.
    Marilyn Frank
    "Overall, a Great Experience"
    He and his partner PJ worked quickly and efficiently to solve a dryer vent issue we had been experiencing.
    Pierre Thelusma
    "Excellent Service, Very Cordial"
    Took care of our electrical needs with ease!
    Peter Larocque
    "Paul from Cornerstone was fantastic!"
    He was quick, thorough, professional, and made sure everything was done right.
    Jess Nichol
    "Nothing but a wonderful experience"
    10/10 experience and so happy we got in touch with him and this company!
    Anthony Capozzi
    "Did an Excellent Job Finding a Leak"
    They were so neat, you would never know there was a problem.
    Bill Mullen
    "Paul is always friendly, polite, and professional"
    Paul is always friendly, polite, and professional.
    Cindy Marcin
    "All Went Smoothly and Efficiently"
    Paul was efficient and expert at correcting the problem and ensuring all was well.
    Woodrow Cook
    "Robert Did Fantastic Work"
    He went above and beyond for me when some unforeseen issues arose with my bathtub install.
    Susan Hevey
    "New customer"
    Tech was on time, friendly, and competent.
    Vincent JJ Balukonis
    "Jason did a fantastic job"
    He was very thorough and quickly corrected the issue.
    Gary Chisholm
    "Very Prompt and Clear Service"
    Josh was very prompt with his services and explained things clearly.
    Kim Mcanany
    "Great job, appreciate the care"
    Arnold is a pleasure to work with.
    Esther Bradbury
    "Jason is always great and knowledgeable"
    Jason is always great and knowledgeable and friendly.
    Mark Duell
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Questions We Hear Before Every Job

Do you charge by the hour?
No. Every job is priced by the job, not the hour. We give you a flat rate before the work begins, and that number doesn't change at completion, regardless of how long it takes.
What trades do you handle?
We cover HVAC, plumbing, electrical, cleaning, handyman work, and home modifications, including wheelchair ramp installation, grab bar installation, and stairlift installation. Every trade is handled by the same company under one warranty.
Is same-day service available?
Yes. Call us and we'll work to get a technician out the same day. Our staff is on-call 24 hours a day, every day of the week.
Are your workers background-checked?
Yes. Every worker we send to your property has passed a background check before setting foot in your home or business.
Do jobs come with a warranty?
Yes. Every completed job is backed by a signed warranty under our quality assurance policy. You get documented protection on the work, regardless of which trade performed it.
Do you serve commercial customers?
We do. We handle both residential and commercial work across every trade, with the same per-job pricing and signed warranty for business customers.

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