Boiler installation & options

New boiler installation across Edinburgh and the Lothians

Our Gas Safe and OFTEC registered engineers supply and install gas and oil boilers at a fixed price, agreed before any work begins.

A-rated, up to 12-year warranties Gas & oil boiler specialists 0% finance, no deposit Free survey & fixed quote

Your local heating experts

Need a new boiler? Trust the local team

We are the Lothians' boiler installation specialists, accredited by Worcester Bosch, Vaillant and Glow-Worm and serving homes across Midlothian, East Lothian, West Lothian and Edinburgh.

Whether your boiler has failed or you have simply decided it is time for an upgrade, we make the whole process clear, straightforward and stress free.

Your installation at a glance

What to expect from a typical Limitless Heating boiler replacement.

Free survey
No-obligation visit and a fixed written quote
1–2 days
Typical time to fit your new boiler
Our own engineers
Installed by our own team, never subcontracted
Finance available
Spread the cost into manageable payments
1100+
Boilers installed
48+
Years of experience
12yr
Max boiler warranty
400+
5★ customer reviews

Why upgrade

Reasons to replace your boiler

Beyond just avoiding the next breakdown, here is what a modern boiler actually changes day to day.

Lower running costs

A modern A-rated boiler wastes far less fuel, so more of every pound you spend actually becomes heat.

Reliable and safe

Fewer breakdowns, plus modern safety cut-offs that guard against leaks and carbon monoxide.

Comfort on demand

Faster, steadier heating and hot water throughout your home, even in the depths of winter.

Smart heating controls

Pair with a smart thermostat and manage your heating from your phone, wherever you are.

Greener operation

Cleaner running, with fewer emissions and a smaller carbon footprint.

Modern and quiet

Newer boilers run more quietly than the units they replace, and are built to last for years.

Which boiler?

Choosing the right boiler for your home

Not sure what you need? Your surveyor recommends the best fit. Here is how the three main types compare.

Combi
Most popular · no tank required

One compact unit that heats water straight from the mains on demand, with no hot water cylinder or loft tank needed.

System
Good for larger homes

Works with a hot water cylinder but keeps the main parts inside the boiler, so it fits quicker and needs no loft tank.

Regular
Best for traditional systems

Also called heat-only. Suits traditional set-ups with a separate cylinder and loft tank, a natural fit for older and oil-fired homes.

Natural gas, LPG or oil?

Whatever powers your home

On the gas grid or off it, we install and look after the right system for your property.

Gas boilers

Gas Safe registered

The most common choice. If your property is connected to the gas network, a natural gas boiler is usually the simplest and most cost-effective option.

LPG boilers

Gas Safe registered

Works just like a natural gas boiler, but runs on stored gas. Storage options include above or below-ground tanks, or a bottled gas solution.

Oil boilers

OFTEC registered

Ideal for homes off the gas grid. An oil boiler works much like a gas one and requires an accessible storage tank, ideally clear of walls and guttering.

We install the best

Trusted brands, industry-leading warranties

We're accredited installers of Worcester Bosch, Vaillant and Glow-Worm, so every boiler is a quality product backed by a long manufacturer guarantee and fitted to their exact requirements.

Combi boilers we install
Worcester BoschGreenstar 2000, 4000, 8000 and CDi Compact
VaillantecoTEC plus and ecoTEC exclusive
Glow-WormEnergy and Compact
System boilers we install
Worcester BoschGreenstar 4000 and 8000 System
VaillantecoTEC plus and exclusive System
Glow-WormEnergy System and Ultimate3
Regular (heat-only) boilers we install
Worcester BoschGreenstar Ri and Danesmoor
VaillantecoTEC plus open vent
Glow-WormEnergy Regular

Guide prices

Gas and oil boilers, supplied and fitted from £1,700

Guide prices to help you budget. Your fixed price is confirmed after a free on-site survey. We fit oil boilers as well as gas.

Worcester Greenstar 4000

25kW gas combi
from£2,400*
Guide price · supplied & fitted
  • Quiet Mark accredited
  • Works with Hive smart controls
  • Up to 10-year warranty

Vaillant ecoFIT pure 825

25kW gas combi
from£2,450
Guide price · supplied & fitted
  • German-engineered reliability
  • Compact, quiet wall-mounted unit
  • Up to 10-year warranty

*Finance is available on this model, subject to status.

1
Online estimate
Answer a few quick questions and get an instant estimate, with no obligation.
2
Free on-site survey
We visit, assess your home and talk through the right options in plain English.
3
Fixed formal quote
You receive a clear written quote. That price is fixed, so what we agree is what you pay.

Pay monthly, not all at once

A new boiler is a big purchase, so you can split it into monthly payments instead. A quick online application, flexible terms, and options to suit most budgets.

Boiler finance options

Old boiler vs new

Where your money goes

Efficiency is how much of your fuel actually becomes heat. With a tired old boiler, the rest disappears up the flue.

Typical 12-year-old boiler
~70%
Around 30p in every £1 wasted
New A-rated boiler
92%+
Up to 20% less gas for the same heat

Efficiency figures: Energy Saving Trust.

How it works

Your boiler replacement, step by step

01

Get in touch

Call us to book your free survey, or answer a few questions online for an instant guide price.

02

Free survey

An experienced engineer visits to check everything, then sends a detailed, fixed quotation.

03

Installation

Once you give us the go-ahead, your new boiler is usually fitted within two weeks.

04

Aftercare

We complete the paperwork, check you're happy, and send a service reminder at 11 months.

No hidden extras

What every fixed-price installation includes

One clear quote covers the lot, so you know exactly what you are paying for before we lift a spanner.

Gas Safety Certificate issued

Your installation signed off and certified, with building regs notified on your behalf.

Removal of your old boiler

Taken away and disposed of responsibly, with no mess left behind.

System filter & chemical flush

Protects your new boiler and keeps it running at its best.

Smart controls set up

Your thermostat and heating controls fitted, tested and explained.

Warranty registered for you

Up to 12 years, sorted on your behalf, with the paperwork done.

One fixed price, no surprises

The quote you accept is the price you pay. If we ever hit something unexpected, we talk to you first.

Still deciding?

£500–£600 a year, potentially saved

Heating is around half of a typical energy bill. Swapping a tired G-rated unit for a new A-rated boiler can cut what you waste by up to 20%, year after year.

Savings figures: Energy Saving Trust. Actual savings depend on your home and current boiler.

Instant estimate

Get your online boiler quote in minutes

Answer a few quick questions about your home and current boiler for an instant estimate. No pushy calls, no obligation.

Good to know

New boiler FAQs

Do you install gas and oil boilers?
Yes. As accredited Worcester Bosch, Vaillant and Glow-Worm installers and an OFTEC registered team, we fit gas, LPG and oil boilers across Edinburgh and the Lothians.
How do I know when I need a new boiler?
There's no magic answer, but if your boiler is old and regularly breaks down it may be time. It can be false economy to keep repairing a boiler that's past its best, and our engineers can advise honestly.
What should I consider when choosing a new boiler?
Think about the size of your home and the number of rooms you need to heat, your budget, energy efficiency and the fuel types available in your area. Our experts will guide you through all of these on your free survey.
Is it still worth installing a gas boiler now?
For most homes, yes. The planned phase-out of gas boilers applies to new-build homes, not to replacements in existing properties, so a new gas boiler fitted today will keep running on natural gas for its full lifetime. If you are off the gas grid, we will talk you through oil and LPG options too.
How much is a replacement boiler?
It depends on the make and model you choose, plus the location and condition of your existing installation. A like-for-like swap in the same spot is simpler and cheaper; moving the boiler or changing the type costs more. Our online tool gives a good indication, then we confirm a fixed price after a survey.
How long does it take to fit a new boiler?
Typically one to two days, depending on the position, type and condition of your existing boiler. We confirm the timescale with you before we start.
Will I be without heating or hot water?
There's usually a short period without heating and hot water while we swap the boiler, but we plan the work to keep disruption to a minimum and keep you updated at every step.