Complete Heating System Upgrades
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Complete Heating System Upgrades

Complete heating system upgrades for homes and businesses, not just a boiler swap. Our Gas Safe engineers replace boilers, radiators, pipework and controls as one job, giving you a new central heating system that heats every room properly and runs efficiently.

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Your enquiry

Complete Heating System Upgrades

Finance options available using

Ideal FinancePhoenix finance

Sound familiar?

A boiler that keeps breaking down, and rooms that never get warm?

An ageing heating system rarely fails all at once. It gets noisier, slower and more expensive to run, and every repair just buys a bit more time on a system that's already past its best.

Replacing the boiler on its own often isn't enough either. If the radiators, pipework and controls aren't right, a new boiler simply inherits the old problems. That's why we look at the whole central heating system before recommending anything.

Get my heating assessed
  • Repeat call-outs

    Paying for one repair after another on a boiler that's near the end of its life.

  • Cold spots

    Rooms that never warm up because the radiators are too small or the system is full of sludge.

  • Slow hot water

    Waiting ages for hot water, or running out halfway through the morning rush.

  • No real control

    One thermostat for the whole house, heating rooms nobody is using.

What's Included

  • Central heating installation by our own Gas Safe registered engineers
  • Boiler and radiator replacement, new pipework and upgraded controls
  • Worcester Bosch and Ideal Heating equipment options
  • Written warranty on every completed installation

A New Central Heating System, Not Just a New Boiler

Our complete heating system upgrades cover far more than swapping the boiler. Our Gas Safe engineers check the radiators, pipework and controls too, because a badly sized radiator is one of the most common reasons a room never quite warms up, even with a brand new boiler on the wall. We fit Worcester Bosch and Ideal Heating equipment and size every system to the property, rather than selling a one-size-fits-all package.

If your system is old or has been patched up over the years, a full central heating installation is often the better long-term choice. That can mean a new combi or system boiler, radiators in the right sizes, a system flush or fresh pipework, and controls that let you heat only the rooms you use. Whether it's a straight boiler and radiator replacement or a completely new system, you'll know exactly what's included before any work starts.

Because the same team also handles insulation and low-carbon heating, we'll tell you honestly if loft insulation would let a smaller, cheaper-to-run system do the job, or whether an air source heat pump makes more sense than another gas boiler. Every installation comes with a written warranty.

  • Heat demand checked before the boiler is sized
  • Radiators matched to each room, not guessed
  • System cleaned or flushed where needed, so new equipment isn't fed old sludge
  • Controls set up so you only heat the rooms you use
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Projects Completed

Solar, heat pump and storage installs delivered across residential and commercial properties.

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Years Combined Experience

An accredited team with decades of hands-on energy and construction work behind it.

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Industry Accreditations

Independently audited by MCS, TrustMark, Gas Safe and five other industry bodies.

Client Stories

Trusted By Homeowners And Businesses Alike

See how our renewable energy solutions are helping customers reduce costs, increase efficiency, and gain greater energy independence.

Amjid H.

Amjid H.

Home Owner

I got my insulation done by greentek they were fantastic from the start. On the way we had one two problems from the contractors but greentek took care of it! Kept me informed and solved the issues. They communicated consistently and kept me in the loop.

Review from Google

★★★★★

Luki

Luki

Business Owner

We required an urgent new boiler installation due to the old one breaking down and being unrepairable. Greentek Energy supplied and fitted a new one at very short notice so our tenants could have heating and hot water again. We are very grateful to Greentek Energy and would recommend them highly.

Review from Google

★★★★★

Ian B.

Ian B.

Home Owner

Part of the Ecobility company. the people at Greentek know their stuff. Got a quote in just under 20 minutes where others insisted on coming around the house. They were cheaper too!

Review from Google

★★★★★

Omer M.

Omer M.

Home Owner

Quick and efficient service.

Review from Google

★★★★★

Amjid H.

Amjid H.

Home Owner

I got my insulation done by greentek they were fantastic from the start. On the way we had one two problems from the contractors but greentek took care of it! Kept me informed and solved the issues. They communicated consistently and kept me in the loop.

Review from Google

★★★★★

Luki

Luki

Business Owner

We required an urgent new boiler installation due to the old one breaking down and being unrepairable. Greentek Energy supplied and fitted a new one at very short notice so our tenants could have heating and hot water again. We are very grateful to Greentek Energy and would recommend them highly.

Review from Google

★★★★★

Ian B.

Ian B.

Home Owner

Part of the Ecobility company. the people at Greentek know their stuff. Got a quote in just under 20 minutes where others insisted on coming around the house. They were cheaper too!

Review from Google

★★★★★

Omer M.

Omer M.

Home Owner

Quick and efficient service.

Review from Google

★★★★★

Our Process

Four Steps.
Zero Surprises.

From the first call to the final handover, a clear, transparent process designed to deliver solar, home improvement, and renovation work with zero hassle.

STEP 1

Free Survey

Book online or call. A Greentek specialist visits your property to assess your solar, heating, insulation, or renovation needs.

STEP 2

Custom Quote

Get a clear, fixed-price quote with material and brand options, and an honest timeline, no hidden fees.

STEP 3

Expert Installation

Our in-house accredited team carries out the work, solar, heat pump, insulation, or renovation, no subcontractors passing the job around.

STEP 4

Handover & Warranty

We walk you through everything on completion, clean up after ourselves, and hand over your written warranty.

Fully Accredited & Certified.

  • MCS Certified
  • TrustMark Government Endorsed Quality
  • Gas Safe Register
  • HIES accredited
  • Amtivo certified
  • SWIGA member
  • Qualitymark Protection accredited
  • British Assessment Bureau certified

What it costs

What Central Heating Installation Costs

A like-for-like boiler swap and a completely new central heating system are very different jobs. The survey tells us which one your home needs before we give you any price.

  • Boiler type and output

    Combi, system or regular boiler, sized to your home's heating and hot water demand rather than guessed.

  • Swap or system change

    Whether the boiler stays where it is, moves, or the whole system type changes.

  • Radiators and controls

    Any radiators that need replacing, a system flush, and the controls you'd like.

  • Flue and pipework

    Where the flue goes, and any gas or pipework changes the installation needs.

Every quote includes

  • A free site survey, with no obligation to go ahead
  • A fixed price agreed in writing before any work starts
  • Materials, labour and making good, in one price
  • Our own team throughout — no subcontractors marking the job up
  • A written workmanship warranty on completion

We don't quote over the phone from a postcode — the survey is what makes the price fixed rather than an estimate that moves. Finance is available through Ideal4Finance, subject to status.

Get a fixed-price quote

Frequently asked questions

How much does a new central heating system cost?+
It depends on the boiler type, whether it's a like-for-like swap or a full system change, and any work needed on flues, pipework or radiators. We survey the whole system first, then give you a fixed-price quote.
Should I replace just the boiler or the whole heating system?+
Often just the boiler, but not always. If radiators are undersized, pipework is sludged or controls are basic, a new boiler inherits those problems. We check the full system and tell you what's genuinely worth doing.
Which boiler brands do you install?+
We fit boilers from established manufacturers including Worcester Bosch and Ideal, chosen for your home's hot water demand and the space available. Manufacturer warranty terms vary by model, and we'll explain them with your quote.
Are your heating engineers Gas Safe registered?+
Yes. All gas work is carried out by Gas Safe registered engineers, and every installation is registered and certified as the regulations require.
How long does a boiler replacement take?+
A like-for-like boiler swap is usually completed in a day. Moving the boiler, changing the system type or replacing radiators takes longer, and we'll give you a timeline with the quote.
Where do your central heating installers work?+
Our engineers are based in Solihull and install central heating across Birmingham, Wolverhampton, Coventry, Dudley, Cardiff, Swansea and the surrounding areas. Pop your postcode into the quote form and we'll let you know within one business day.
Can I spread the cost of a new boiler?+
Yes. Boiler finance is available through Ideal4Finance, subject to status.

Free Quote

Get a Free Heating Upgrades Quote

Tell us about your heating upgrades project and we'll come back within one business day with a straight answer, a plan and a real quote.

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