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.
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.
What to expect from a typical Limitless Heating boiler replacement.
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.
One compact unit that heats water straight from the mains on demand, with no hot water cylinder or loft tank needed.
Works with a hot water cylinder but keeps the main parts inside the boiler, so it fits quicker and needs no loft tank.
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 registeredThe 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 registeredWorks 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 registeredIdeal 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
System boilers we install
Regular (heat-only) boilers we install
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.

Glow-Worm Compact
- Our most affordable A-rated combi
- Ideal for flats & smaller homes
- Up to 7-year warranty

Worcester Greenstar 4000
- Quiet Mark accredited
- Works with Hive smart controls
- Up to 10-year warranty

Vaillant ecoFIT pure 825
- German-engineered reliability
- Compact, quiet wall-mounted unit
- Up to 10-year warranty
*Finance is available on this model, subject to status.
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.
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.
Efficiency figures: Energy Saving Trust.
How it works
Your boiler replacement, step by step
Get in touch
Call us to book your free survey, or answer a few questions online for an instant guide price.
Free survey
An experienced engineer visits to check everything, then sends a detailed, fixed quotation.
Installation
Once you give us the go-ahead, your new boiler is usually fitted within two weeks.
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?
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
