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Critical Systems New EnglandHVAC contractor in Waltham, MA

Critical Systems New England is an HVAC contractor at 42 Felton St Unit 2R, Waltham, MA 02453. Open Monday to Friday.

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Key facts

Key facts about Critical Systems New England
Address42 Felton St Unit 2R, Waltham, MA 02453Get directions
Websitecriticalsystems.com
HoursMonday to Friday: 9 AM – 5 PM

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Waltham and 11 towns within 25 miles: Watertown, Newton, Weston, Belmont, Lincoln, Arlington, Lexington, Wellesley, Needham, Wayland and Brookline.

Based in Waltham, MAView on map

Opening hours

Opening hours for Critical Systems New England
DayHours
Monday9 AM – 5 PM
Tuesday9 AM – 5 PM
Wednesday9 AM – 5 PM
Thursday9 AM – 5 PM
Friday9 AM – 5 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • Open Sundays — no

Typical heating and cooling prices

Typical heating and cooling prices
JobLowTypicalHigh
AC replacementPer system, installed (unit plus labor); typical range of customer-reported jobs. US national range$3,887$5,978$8,073
Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range$2,823$4,814$6,896

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

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Questions about Critical Systems New England

What are Critical Systems New England’s hours?

Critical Systems New England is open Monday to Friday. Its listed hours are Monday to Friday, 9 AM – 5 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Critical Systems New England serve?

Serves Waltham and 11 towns within 25 miles: Watertown, Newton, Weston, Belmont, Lincoln, Arlington, Lexington, Wellesley, Needham, Wayland and Brookline. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

How do I contact Critical Systems New England?

The business is at 42 Felton St Unit 2R, Waltham, MA 02453. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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