Air Conditioning Installation & Repair in Holliston, MA
Looking for professional air conditioning installation & repair in Holliston, Massachusetts? Mass HVAC is the trusted local choice. Licensed, insured, and 5-star rated.
Service area: Holliston, MA — ZIP code 01746 and the surrounding Middlesex County area.
Air Conditioning Installation & Repair in Holliston, Massachusetts
Holliston residents trust Mass HVAC for professional air conditioning installation & repair. Serving Middlesex County and the surrounding communities, we bring years of hands-on experience to every heating, cooling, and air quality project.
Professional air conditioning service in Holliston, MA starts with understanding the home. Middlesex County is characterized by colonial-era and mid-century homes, many built between 1950 and 1985, with basements, attached garages, and original HVAC systems that are nearing or past their expected lifespan. Each home type has different cooling requirements, and a system that works perfectly in one may be completely wrong for another.
A surprising number of MetroWest homes were built without central air conditioning. Rather than retrofitting ductwork through finished walls, many homeowners are choosing ductless mini-split systems that provide both heating and cooling from a single unit — with no major construction required.
AC services we provide in Holliston: - Central air conditioning installation and replacement - Emergency AC repair — we prioritize vulnerable residents during heat waves - Seasonal cooling system tune-ups - Refrigerant leak diagnosis and repair - Thermostat programming and smart home integration - Indoor humidity control and dehumidification
We never install an air conditioning system without first performing a cooling load calculation. This ensures your Holliston home gets the right-sized unit — not too large (which short-cycles and fails to dehumidify) and not too small (which runs constantly and cannot keep up).
The Mass HVAC Advantage in Holliston
We are based in Milford, MA — close to Holliston and all of Middlesex County. That proximity means:
- Faster response times for emergencies and scheduled service
- Knowledge of local building codes and permit requirements
- Familiarity with Holliston's housing stock and common HVAC configurations
- Established relationships with local suppliers for fast parts availability
- A reputation built on referrals from satisfied Holliston homeowners
Call (508) 786-8755 for a free air conditioning installation & repair estimate in Holliston, MA.
Why Choose Mass HVAC for Cooling in Holliston?
Licensed & Insured
Fully licensed contractor serving Holliston with comprehensive insurance coverage.
24/7 Emergency Service
Fast response day or night, including weekends and holidays.
Free Estimates
Transparent, upfront pricing with no hidden fees.
100% Satisfaction
Every air conditioning installation & repair job in Holliston backed by our guarantee.
Other HVAC Services in Holliston, MA
Explore all our professional HVAC services available in Holliston.
Cooling in Nearby Cities
We also provide air conditioning installation & repair in these nearby Massachusetts communities.
Frequently Asked Questions About Cooling in Holliston
Common questions about air conditioning installation & repair in Holliston, Massachusetts.
Holliston homeowners typically pay $89–$149 per AC tune-up for cooling tune-ups, $175–$600 per repair (parts + labor) for common repairs, and $5,500–$12,000 per installed system for a complete new installation. Final pricing depends on system size, brand, and site conditions; Mass HVAC provides written estimates with no surprise fees. Call (508) 786-8755 for a free quote.
Yes — Mass HVAC dispatches 24/7 emergency cooling service to Holliston, MA and the surrounding Middlesex County area. Our techs carry common parts on the truck for same-visit repair on most calls. Call (508) 786-8755 day or night.
Sizing is done with a Manual J load calculation — typically 1 ton of AC per 600–800 sq ft of conditioned space, adjusted for insulation, window area, and orientation. We never quote an AC by square footage alone; oversized units short-cycle and fail to dehumidify, undersized units never reach setpoint. Free in-home sizing is part of every estimate.
Yes. Mass HVAC holds a Massachusetts HVAC contractor license, EPA Section 608 refrigerant certification, and a Massachusetts Construction Supervisor license, and carries full general liability and workers' comp insurance. All cooling work in Holliston is performed by licensed technicians and pulled with the correct local permits.
“The best hvac company around ! Giliard is a great technician”
Wanderson RosaGoogle“They are great team! They did an amazing work!”
kendally DuarteGoogle“I am Henry Muler , I had Gilliard and his people perform a huge project in my house, all old air ducts removed new metal ones installed , new Bosh AC with heat pump installed , tested . My wife and myself we are extremely please with the work the was done ,Everything was done clean and not much of destruction in our daily lives. Thank you Gilliard for a very professional work and being very reliable.”
Henry MulerGoogle“These guys do great work at a great price. Highly recommend.”
Homero PereiraGoogle“Excellent customer service ❄️🔥”
Robert Rangel SilvaGoogle“bring comfort back to my home, thanks Gilliad and team”
LUIZ ALBERTOGoogle
Our Service Area
MetroWest fast, reliable HVAC service to 50+ MetroWest cities and towns.
Fast Response
Usually within 60 minutes
50+ MetroWest Cities
Worcester, Middlesex & Norfolk Counties
Licensed & Insured
Full MA HVAC licensure
5-Star Rated
On Google Reviews