15 years
Experience in the trade
Gas Safe
Registered no. 620476
12-month
Workmanship guarantee
Fully insured
On every job
Within 3 days
Free quotes, usually
Overview

About radiator installation & replacement

What we do

We install new radiators, replace old or damaged ones, move radiators to new positions and fit thermostatic radiator valves. Each radiator is connected neatly and the system is refilled, bled and balanced so it heats evenly.

Who it's for

Homeowners with cold rooms, rusty or leaking radiators, or radiators in awkward positions, plus anyone redecorating, refitting a bathroom or extending their home. Landlords also replace radiators between tenancies.

When to replace a radiator

Signs include cold patches that bleeding doesn't fix, rust or weeping at the joints, a radiator that's too small for the room, or one that's in the way of a new layout.

Why fit it properly

A radiator that's the wrong size or badly connected won't heat the room and can unbalance the rest of the system. Getting the size, valves and balancing right matters as much as the radiator itself.

Why it matters

What happens if it's left

Old or undersized radiators affect the whole system, not just one room.

Cold rooms

An undersized radiator can't keep up, so the room never gets comfortable.

Leaks

Corroded radiators and valves can leak and damage flooring and ceilings below.

Wasted energy

The boiler runs longer trying to heat rooms with poor radiators.

Sludge spread

Rusting radiators add debris to the system, which can affect the boiler.

Common mistakes we see

  • Choosing a radiator by appearance without checking its heat output.
  • Not balancing the system after new radiators are fitted.
  • Ignoring sludge, then connecting new radiators to a dirty system.
  • Leaving old valves in place that are already failing.
Our process

How the job works

  1. 01

    Assess the room

    We look at the room size, the existing radiator and the pipework.

  2. 02

    Recommend & quote

    We suggest the right size and style, and send a free quote, usually within 3 days.

  3. 03

    Fit

    We drain down, remove the old radiator, fit the new one and valves neatly.

  4. 04

    Refill & balance

    We refill, bleed and balance the system so heat reaches every room.

  5. 05

    Check & guarantee

    We check for leaks and the work is covered by our 12-month workmanship guarantee.

Benefits

What you get

Warmer rooms

Radiators sized for the space they heat.

Better control

Thermostatic valves let you set each room's temperature.

Clean finish

Neat pipework and a tidy work area.

Fewer leaks

New radiators and valves replace corroded ones.

Efficiency

A balanced system heats faster and uses less gas.

Guaranteed

12-month workmanship guarantee.

In detail

Choosing and fitting radiators

Sizing for heat output

Every radiator has a heat output. The right output depends on the room's size, windows and exterior walls. We'll recommend a radiator that heats the room properly rather than guessing.

Styles and positions

Radiators come in different heights, widths and styles, including towel rails for bathrooms. Moving a radiator to a new wall is possible, and we'll plan pipe runs to keep them neat.

Valves

Thermostatic radiator valves let you control rooms individually. Replacing old valves at the same time as a radiator is usually good value.

Balancing the system

After any radiator work, the system should be balanced so heat is shared evenly. It's a step often skipped, and it makes a real difference.

When a power flush helps

If radiators have cold spots at the bottom, sludge may be the cause. A power flush before or alongside new radiators protects your investment.

Why a radiator stays cold

A radiator that's cold at the top usually has trapped air and needs bleeding. One that's cold at the bottom often has sludge build-up, which a power flush can clear. If a single radiator never warms up at all, the valve may be stuck or the system may need balancing. And if every radiator is lukewarm, the problem may be with the boiler or pump. We diagnose which it is before recommending a new radiator, so you don't replace something that doesn't need replacing.

Radiators for bathrooms and extensions

Bathrooms often suit heated towel rails, which dry towels and warm the room. Extensions and loft conversions need radiators sized for their larger windows and exterior walls. When you add rooms, we'll check your boiler has enough capacity to heat the extra space properly.

Preparing for a heat pump

Heat pumps run at lower temperatures than gas boilers, so radiators often need to be larger to deliver the same warmth. If you're thinking about a heat pump in future, it can make sense to choose radiators with that in mind now.

Replacing radiators without the mess

Replacing a radiator means draining at least part of the system, so we protect floors, work carefully around decoration and refill without leaving drips behind. Where a new radiator is a different size, we adjust the pipework neatly rather than leaving awkward bends on show. If you're redecorating, it's a good time to swap radiators, as the wall behind can be painted while the radiator is off.

We cover Fareham, Gosport, Stubbington, Portchester, Titchfield, Locks Heath, Park Gate, Warsash, Whiteley, Lee-on-the-Solent, Portsmouth and Southampton.

Radiators for landlords

Old, rusty radiators are a common complaint in rental properties and a frequent cause of leaks between tenancies. Replacing them while the property is empty keeps disruption low and reduces the chance of mid-tenancy call-outs. We can replace radiators, fit TRVs and balance the system in one visit, and the work carries our 12-month workmanship guarantee.

Thermostatic radiator valves explained

A thermostatic radiator valve (TRV) senses the temperature in the room and reduces the flow of hot water into the radiator as the room warms up. It means bedrooms can be kept cooler than living rooms, and rooms that get sun during the day don't overheat. Fitting TRVs when you replace radiators is a simple way to get more control over your heating and avoid wasting energy heating rooms you're not using.

Where we work

We carry out radiator installation & replacement for homeowners and landlords across Fareham, Gosport, Stubbington, Portsmouth, Southampton, Titchfield, Portchester, Lee-on-the-Solent, Locks Heath, Park Gate, Warsash and Whiteley.

FAQ

Radiator Installation & Replacement FAQs

Straight answers before you pick up the phone.

How much does it cost to replace a radiator?

It depends on the radiator and the pipework. We'll give you a free quote, usually within 3 days.

Can you move a radiator?

Yes. We can reposition radiators and reroute the pipework neatly.

Will you balance the system?

Yes. We refill, bleed and balance the system after the work.

Can you fit towel rails?

Yes, as part of our radiator and bathroom plumbing work.

Do I need a power flush first?

Not always. We'll advise if sludge is affecting your system.

Is the work guaranteed?

Yes, with our 12-month workmanship guarantee.

How long does it take to replace a radiator?

It depends on the number of radiators and any pipework changes. We'll give you a timescale in your quote.

Can you fit radiators in an extension?

Yes, and we'll check your boiler can heat the extra space.

Do you offer emergency or out-of-hours call-outs?

No. We work 7am to 10pm, every day, and attend breakdowns within those hours. We don't offer out-of-hours call-outs, which keeps our pricing straightforward.

What guarantee do I get?

All our work is guaranteed for 12 months. If anything goes wrong because of our workmanship or a faulty product we supplied, we'll put it right.

How can I pay?

We accept card, bank transfer and cash. A deposit is required on installations. We don't offer finance.

Which areas do you cover?

We're based in Fareham and cover Gosport, Stubbington, Portsmouth, Southampton, Titchfield, Portchester, Lee-on-the-Solent, Locks Heath, Park Gate, Warsash and Whiteley.

Gas Safe registered · Trusted boiler brands we install

  • Gas Safe Register – registered gas engineers in Fareham
  • Worcester Bosch boiler installer in Fareham, Hampshire
  • Alpha Heating Innovation boiler installer in Hampshire
07803 176445Free Quote