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Boiler & Heat Pump Replacement Calculator

Compare combi boiler, system boiler, and air-source heat pump replacement costs in your area.

Determine realistic turnkey replacement pricing for gas condensing combi boilers, system boilers with unvented cylinders, and renewable air-source heat pumps. Includes chemical system flush, magnetic filtration, thermostat controls, and certified gas/F-gas commissioning.

Boiler & Heat Pump Replacement Calculator

USD (en-us) • Imperial standards

System Type
Transparent Market Benchmarks

All estimates are computed using verified regional labor rates and material costs. No fake counts, auctions, or inflated lead fees.

Estimated Total Cost
$2,950 – $5,150
Estimated Turnaround: 1 – 3 days

Itemized Cost Estimation

Materials & Equipment
$2,000 – $3,500
Skilled Labor & Installation
$830 – $1,450
Disposal & Regional Fees
$120 – $210

"Heating installation: Combi Boiler swap"

Your calculated parameters will be prefilled directly into your 1:1 quote request.

How it works

This estimate is a benchmark. Here's how to turn it into a real quote.

  1. Adjust the sliders

    Set the scope of your project above and watch the benchmark range update instantly.

  2. Request the real figure

    The calculator can't see your site, access or finish — a local business can. Your calculated inputs are sent with the request.

  3. One business, no obligation

    You get a real quote from a single local business in this trade. Free to ask, and you decide what happens next.

Frequently Asked Questions

Boiler & Heat Pump Replacement Calculator

Do I need to replace my radiators when installing a heat pump?
Not necessarily. Modern heat pumps operate efficiently at 50°C. A heating engineer will conduct a room-by-room heat loss survey to identify if any specific undersized radiators need upgrading.

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