Boiler Installations

Boiler Installation in Kelso & the Scottish Borders

Trusted, Gas Safe registered boiler installations across the Scottish Borders and East Lothian. As Vaillant Advanced Installers we fit all makes — with extended manufacturer warranties and tidy, on-time work.

5★ rated on Google & Facebook·Gas Safe registered
New Vaillant combi boiler installed in a Scottish Borders home

Who this is for

  • Homeowners with a boiler that's 10+ years old or losing efficiency
  • Anyone facing repeated breakdowns or rising energy bills
  • Households converting from regular to combi for more space
  • New extensions, renovations and bathroom upgrades needing more capacity
  • Landlords needing a compliant, warrantied installation

Why homeowners choose us

  • Vaillant Advanced Installer — up to 12-year warranty
  • All major brands: Worcester Bosch, Ideal, Baxi
  • Fixed written quote after a free site visit
  • Most combi swaps completed in a single day
  • Smart heating controls fitted as standard
  • Old boiler removed & disposed of responsibly

How it works

  1. Step 1

    Free site visit

    We assess your system, hot water demand and any upgrades.

  2. Step 2

    Fixed written quote

    Clear, itemised pricing — no pressure, no hidden costs.

  3. Step 3

    Installation

    Tidy, on-time work by Gas Safe registered engineers.

  4. Step 4

    Aftercare

    System demo, paperwork and ongoing servicing.

Trust & accreditations

  • Gas Safe registered (verifiable on Gas Safe Register)
  • Vaillant Advanced Installer status
  • Fully insured with public liability cover
  • Manufacturer-backed extended warranties
  • 5-star reviews from Borders homeowners
  • Local family business, est. in Kelso

Recent work

Newly installed combi boiler with copper pipework
Vaillant boiler being serviced by Gas Safe engineer
Boiler repair underway in a Borders home

Which new boiler?

Choosing a new boiler starts with the house and its hot water use, not simply the size of the old appliance. During the survey we assess the existing system, demand and any upgrades. Tell us how many outlets are used together, whether there is a cylinder and whether a renovation will add a bathroom. The right recommendation considers the water supply and heating requirements alongside the available installation space.

A combi provides hot water on demand and can remove the need for stored hot water where the supply and household demand suit it. A system or regular arrangement keeps a cylinder in the discussion when stored hot water is useful. In an off-gas home, an oil boiler is a different installation route with its own fuel supply considerations. Our combi and oil installation pages explain these choices rather than assuming one boiler type is best for every property.

We install all makes, with Vaillant our preferred manufacturer. The Vaillant installation page explains that option, while the boiler sizing guide separates heating demand from the output needed for hot water. Controls, flue route, system condition and any radiator or pipework changes belong in the decision as well. After a free site visit, the written quote sets out the proposed appliance and work, so you can compare the complete installation rather than only the boiler model.

Should a replacement boiler have the same output as my old one?
Not automatically. The survey considers the property's heating needs, hot water demand, supply and planned changes. Copying the old output can carry an unsuitable specification into the new installation.
Can I compare combi and oil boiler options before choosing?
Yes. The practical options depend on the available fuel, existing system and hot water needs. Our installation pages explain each route, and the survey establishes which arrangement suits the property before a written quote is prepared.

Boiler Installations FAQs

How long does a boiler installation take?+

A like-for-like combi swap is usually completed in a single day. A full system upgrade or conversion (e.g. regular to combi) typically takes 2–3 days. We give you a clear timeline in your written quote.

How much does a new boiler cost in the Scottish Borders?+

The price depends on the make, model, controls and any system upgrades. We provide a fixed written price after a free site visit, with the full scope set out before work starts.

What boiler warranty will I get?+

As Vaillant Advanced Installers we can offer extended manufacturer warranties of up to 12 years on Vaillant boilers. Worcester Bosch, Ideal and Baxi typically come with 7–10 year warranties.

Do you install all makes of boiler?+

Yes — Vaillant (preferred), Worcester Bosch, Ideal, Baxi and more. We recommend the best fit for your home, hot water demand and budget.

Will you remove and dispose of my old boiler?+

Yes. We remove and responsibly dispose of your old boiler and any redundant pipework, and leave the area clean and tidy.

Are you Gas Safe registered?+

Yes — every gas engineer on our team is Gas Safe registered and fully insured. You can verify our registration on the Gas Safe Register.

Are you a local boiler installer near me?+

We are based in Kelso (TD5) and work outwards across the Scottish Borders and East Lothian, so for most of the region we are the local firm rather than a national brand passing through. If you are unsure whether your postcode is inside our patch, call 07747 002334 and we will tell you straight away.

Who actually turns up to fit the boiler?+

Our own Gas Safe registered engineers. The same people who visit to quote your job carry out the installation, so nothing is lost between the survey and the fitting day, and there are no subcontracted crews.

How do quote visits and call-outs work?+

Quote visits are booked during office hours, Monday to Friday 8am to 5pm and Saturday 8am to 2pm. Our 24/7 line is answered locally, so if your old boiler fails outside those hours you still speak to someone who knows the area rather than a call centre.

Searching for boiler installation near you?

Our base is in Kelso, TD5, and that is where the vans start and finish the day. From there we work out across the Scottish Borders and into East Lothian, so a Kelso, Melrose, Galashiels, Coldstream or Duns job is genuinely a short run for us rather than a long trip billed to you.

The engineer who comes out to look at your system is the engineer who fits the boiler. That matters on an installation: the person who measured your hot water demand, checked your gas supply and looked at where the flue can go is the one holding the spanners on fitting day.

Quote visits are arranged in office hours, Monday to Friday 8am to 5pm and Saturday 8am to 2pm. Our 24/7 line is answered locally, so if your boiler dies in the middle of a January night you speak to someone who knows the road to your village. Not sure if you are in our patch? Ring 07747 002334 and ask.

  • Based in Kelso (TD5) — Scottish Borders and East Lothian covered
  • Our own Gas Safe registered engineers, no subcontracted crews
  • Free site visit before any fixed written price
  • Vaillant Advanced Installer, plus Worcester Bosch, Ideal and Baxi

Boiler Installations — towns we cover

Local pages with town-specific notes, postcode coverage and FAQs across the Scottish Borders and East Lothian.

We also cover surrounding villages across the Scottish Borders and East Lothian. Ask us if you're unsure.

Get a free, no-obligation quote

Tell us about your project and we'll be in touch — usually the same working day. Or call 07747 002334 24/7.

Get Your Free Quote

Tell us about your project — we'll respond within one working day.

Gas Safe Free Site Visit 5-Star Rated