Furnace Repair & Installation in Short Hills, NJ

Grok Services provides furnace repair & installation in Short Hills, NJ — licensed, fully insured, with same-day estimates and 24-hour emergency service. Call (908) 346-7473.

Strange noises, short cycling, uneven heat, or no heat at all — Grok's furnace technicians diagnose it, explain your options clearly, and fix what's worth fixing.

Forced-air furnaces heat most of the newer homes in Somerset, Hunterdon, and Middlesex Counties, and when one fails in January the whole house knows it fast. Our licensed HVAC team repairs and installs gas furnaces of all major brands, with the same approach we've used since 1969: find the real fault, give you the repair-versus-replace math honestly, and guarantee the work either way.

A new furnace and air handler with custom ductwork installed by Grok Services in a New Jersey basement — A recent Grok furnace and air handler install — new equipment, custom ductwork, labeled for the next service visit.

Furnace Services We Offer

Furnace Repair

Ignition failures, blower problems, short cycling, strange noises, furnaces that run but don't heat — furnace repair starts with an accurate diagnosis, not a parts guess.

Furnace Installation & Replacement

A new furnace sized correctly for your home and ductwork, installed for efficiency and longevity. Modern high-efficiency furnaces can cut heating costs meaningfully versus a 15–20-year-old unit.

Furnace Maintenance & Tune-Ups

A pre-winter heater & furnace maintenance visit — cleaning, inspection, safety-control checks, filter and airflow review — catches worn parts before they become a no-heat call.

No-Heat Emergency Service

Furnace down after hours? We offer emergency heating service 24 hours a day. Call (908) 346-7473 and talk to a local company, not a call center.

Heating Repair, All Systems

Furnace, boiler, or heat pump — one call covers your whole heating system. See our full heating services page for everything we handle.

Heat Pump Alternatives

Replacing a furnace and an aging AC together? A heat pump may heat and cool your home in one system. We'll compare the options honestly for your house and budget.

Signs Your Furnace Needs a Technician

No heat, or the furnace blows cool air
Frequent on-off cycling ("short cycling")
Banging, rattling, squealing, or a blower that never stops
Some rooms warm, others stubbornly cold
Heating bills climbing while comfort drops
Yellow or flickering burner flame (should burn steady blue)
Furnace is 15+ years old and needing repeat repairs

Repair or replace? A furnace in good shape with a single failed part is usually worth repairing. When the heat exchanger is compromised, repairs are stacking up, or the unit is 15–20 years old and losing efficiency every season, replacement usually wins on total cost — especially with the $500 savings below. We'll show you both sets of numbers and let you decide. Heat with hot water or steam instead? That's a boiler — see our boiler repair & installation page.

Furnace Service Areas

Furnace work is licensed work in New Jersey — our HVAC license is #19HC00371600, and our master plumber license is NJMPL#11068. When summer comes, the same team handles your air conditioning.

Furnace acting up?

Same-day estimates and 24-hour emergency service. Call the local team since 1969.

Call (908) 346-7473