No Waiting, No Running Out
Water is heated as it flows, so there is no cylinder to empty and no recovery time between showers.
Unlimited hot water
Serving Glasgow, Edinburgh, Lanarkshire, Ayrshire and across Scotland
Rated 4.6/5 · 300+ Google reviews
Combi Boilers
Combi Boilers
Swapped in a Single Day.
- A-rated Worcester Bosch, Vaillant and Ideal
- Most like-for-like swaps done in one day
- Gas Safe registered engineers
800+ combi boilers installed
300+ reviews
4.6/5 on Trustpilot
New Boiler
from£22
per week*
*Finance, T&Cs apply
[ Hero, A-rated combi boiler installed in a Scottish kitchen ]
[ Hero, A-rated combi boiler installed in a Scottish kitchen ]
Free Home Heating Survey
Boiler options compared, a full radiator check, a clear quote
Home & Showroom Appointments
Free design visits, 7 days a week
Finance From £22 A Week
Buy now pay later, subject to status
We Design, Supply & Fit
One team, one contract, start to finish
Rated 4.4/5 on Trustpilot
300+ independent customer reviews
[ Service intro, Gas Safe engineer fitting a new combi boiler ]
Scotland's Most Popular Boiler Upgrade
Book a free home survey
Combi boilers that cut your gas bill from the first day they fire up.
A combi boiler heats water on demand. No hot water cylinder, no header tank. That means more cupboard space, lower bills, and instant hot water whenever you need it. Ultimate Home Solutions fits A-rated combis from the UK's top three brands: Worcester Bosch, Vaillant, and Ideal.
A like-for-like swap (old combi out, new combi in, same position) is typically completed in a single working day. System conversions (moving from a traditional system with tanks to a combi) take 2 to 3 days. Every install includes a full system flush (MagnaCleanse), a new magnetic filter, and Gas Safe certification. The manufacturer warranty is registered for you when the boiler is installed by an approved installer like Ultimate Home Solutions.
- Worcester Bosch, Vaillant and Ideal
- Same-day like-for-like swap
- Full system flush included
- Magnetic filter fitted free
- Gas Safe certified installation
- Manufacturer warranty registered for you
Why A Combi
Hot water the second you turn the tap.
A combi heats water on demand, so the cylinder and the cold tank both go. You get the airing cupboard back, you stop heating water you never use, and nobody runs out because someone else showered first.
Tank and cylinder goneNo loft tank to freeze in January and no cylinder losing heat all day into a cupboard you cannot use.
Condensing Efficiency
Modern condensing units recover heat from the flue gases that older boilers threw straight out the wall.
ErP A-ratedSized To Your House
Output matched to your radiators and how many bathrooms run at once. Oversizing wastes money and cycles the boiler.
Correctly sizedSystem Flushed First
A chemical or power flush and a magnetic filter fitted, so old sludge does not wreck a new heat exchanger.
Flush and filterSmart Controls Included
App-controlled thermostat with room-by-room scheduling, so the heating fits your week rather than a dial.
Smart thermostatSwapped In A Day
Straight combi swaps are usually done same day, tested, commissioned and registered before we leave.
Same-day swap
Get My Combi Boiler Quote
Free home heating survey and a clear, no-obligation quote. Gas Safe registered engineers.
Why Ultimate Home Solutions
Six reasons Scottish homeowners pick Ultimate Home Solutions for combi boilers.
Top-Tier Boiler Brands
Worcester Bosch, Vaillant, and Ideal. A-rated efficiency across the board, with manufacturer warranties registered for you.
Same-Day Combi Swaps
Most like-for-like combi swaps completed in a single working day. Hot water and heating restored before bedtime.
Gas Safe Registered
Every engineer we send is Gas Safe registered. Certification issued with every install, no exceptions.
Free Home Survey
An engineer assesses your existing system and recommends the right boiler type and size for your home.
300+ Google Reviews
Independently verified at 4.6/5 average. Every review published, including the rare critical ones.
Flexible Finance Options
Buy now, pay 12 months later, or 24 months flexible finance. Soft credit check, no score impact.
Recent Installations
Recent combi boiler installations across Scotland.
Models and system types. Hand-picked projects across Glasgow, Edinburgh and Ayrshire. Tap any image for the full case study.
Combi boilers we install across Scotland. Ask us for recent local examples.
View all combi boiler projects
How It Works
Your new heating system in four straightforward steps.
1
Day 1Free Home Survey
A Gas Safe engineer assesses your existing system and walks through boiler options. No pressure.
2
After Your VisitDesign & Quote
You receive a clear quote covering the boiler spec, the manufacturer warranty and any Building Notice needed.
3
1 DayExpert Installation
Most combi swaps fitted in a single day. Old system drained, new boiler installed, system flushed and commissioned.
4
HandoverCommissioning & Warranty
We register the manufacturer warranty, hand over your Gas Safe certificate, Benchmark book and app login.
Spread the Cost
Finance available to help spread the cost.
Start your renovation now and pay over a term that suits you. Buy now and pay later, or arrange manageable monthly payments.
Soft credit check first, no impact on your score, and an instant decision.
Ultimate Home Solutions Ltd is authorised and regulated by the Financial Conduct Authority for consumer credit activities. Ultimate Home Solutions is a credit broker, not a lender. All finance offers are subject to status, application and affordability. Credit is provided by a panel of approved lenders. Registered at Unit 9, 140 Woodhead Road, Nitshill, Glasgow, G53 7NN. Company No. SC442380.
As seen on TV
You've seen us on STV.
Our television advert, broadcast across central Scotland. Turning Scottish houses into homes since 2013, in 60 seconds.
STV advert
Trustpilot
4.4 out of 5 · 283 reviews
Our advert, broadcast across
Glasgow and central Scotland
Our advert, broadcast acrossGlasgow and central Scotland
Visit Us
Our showrooms across Scotland.
Open 7 days
Mon to Sun · 10am to 5pm
Now Open
Kilmarnock Glencairn Industrial Estate
Brand-new kitchen & bathroom showroom
Kitchen showroom
Bathroom showroom
Free parking
Accessible entrance
Open Now
Braehead, Glasgow Dobbies Garden Centre
Finding Us
Walk through Dobbies Garden Centre, take the exit at the back, and head up to the top right.
Kitchen showroom
Windows & doors showroom
Free parking
Accessible entrance
Café on-site
Now Open
Visit our Kilmarnock showroom.
Explore kitchens, bathrooms and bedrooms in person. See the finishes, try the displays and get help from our designers.
No appointment needed Monday to Saturday, and Sundays by appointment. No pressure.
Take a look
inside
inside
FAQ
Combi boiler questions, answered.
The questions we hear most often from Scottish homeowners looking for a new combi boiler. Cost, timescales, brands and what is included.
Not what you were after?
Speak to a real designer, no chatbot, no call-centre. We typically answer within an hour, 7 days a week.
Call 0800 029 3875How much does a new combi boiler cost?
Most A-rated combi boiler installations cost between £2,200 and £4,500 fully fitted, depending on brand, model, and whether it is a like-for-like swap or a system conversion. Every quote is clear, free, and yours to keep with no obligation.
How long does a combi boiler swap take?
Most like-for-like combi swaps are completed in a single working day. System-to-combi conversions (removing the hot water cylinder and header tank) take 2 to 3 days. Hot water and heating are restored before we leave.
Worcester, Vaillant or Ideal: which is best?
All three are excellent A-rated brands. Worcester Bosch offers the longest manufacturer warranty of the three. Vaillant ecoTEC has strong reliability data and German engineering. Ideal Logic is the best value with solid warranties. Our engineer recommends based on your home, not commission.
What is included in the installation?
Every combi boiler install includes: removal and disposal of the old boiler, a full system flush (MagnaCleanse), a new magnetic filter, Gas Safe certification, manufacturer warranty registration, and a Benchmark commissioning book. All workmanship is guaranteed.
Can you convert from a system boiler to a combi?
Yes. We remove the hot water cylinder (usually in the airing cupboard) and the cold water header tank (usually in the loft), then install the combi and re-route the pipework. The conversion typically takes 2 to 3 days and frees up significant cupboard and loft space.
Can I finance my combi boiler?
Yes. We offer Buy Now Pay 12 Months Later, flexible credit up to 24 months, and longer-term flexible credit up to 10 years. The monthly payment is often less than the monthly bill saving. The initial eligibility check is a soft search with no impact on your credit score.
Contact Us
We'll reply within 24 hours.
Glasgow Showroom
Dobbies Garden Centre, 75 Kings Inch Dr, Renfrew, G51 4FB
Kilmarnock Showroom
Block 5, Unit 1 Glencairn Industrial Estate, Kilmarnock, KA1 4AZ
Email
info@ultimategroup.co.uk
Telephone
0800 029 3875
Office Hours
Mon to Sun · 10am to 5pm
Rated by 550+ Verified Customers
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