Combi boiler installation in Aylesbury
A combi boiler heats your water on demand and heats your radiators from one compact unit, with no hot water cylinder or loft tank. Tell us about your home and we send you a written price for fitting one in Aylesbury.
- A few quick questions
- No obligation
A combi boiler suits many smaller and medium homes in and around Aylesbury. It gives hot water as you use it, so there is no tank to store it. Whether it suits yours depends on your pipework, your water pressure and how many people use hot water at once.
How a combi boiler works
A combi, short for combination, boiler does two jobs. It heats the water for your radiators, and it heats the water for your taps and shower when you open them.
Because it heats water on demand, you do not need a hot water cylinder or a cold water tank in the loft. That frees up space in an airing cupboard or loft.
The water arrives at mains pressure, so a good supply matters. Your installer will check this when they look at the job.
Your options when replacing a boiler
Combi boiler
Heats water on demand and runs your radiators from one unit.
- No cylinder or loft tank needed
- Compact, so it saves space
- Hot water whenever you open a tap
- Mains water pressure and flow matter
- Several taps at once can strain it
System boiler with a cylinder
Heats a stored tank of hot water that is ready to use.
- Copes well with several bathrooms
- Hot water ready in the cylinder
- Needs space for the cylinder
- Stored water can run out and take time to heat again
Regular boiler with tanks
Works with a cylinder and a cold water tank in the loft.
- Suits some older heating systems as they are
- Keeps the existing layout
- Needs a loft tank and a cylinder
- Takes up more room
Ask us for a written price
Answer a few questions about your home and we price the job.
- A written price before any work starts
- No obligation to go ahead
- A local installer, not a national call centre
What affects whether a combi fits
- How many bathrooms you have
- How many people use hot water at once
- Your mains water pressure and flow
- Where the old boiler sits
- Where the flue can safely come out
- Whether you want to remove the tank and cylinder
- The state of your existing pipes and radiators
Examples of the style of boiler installation
Example images of the style of work, not photos of our jobs.



How a combi installation goes
Step 1
Tell us about the job
Fill in the quote form with a few details about your home and current boiler.
Step 2
Get a written price
We price the job and send it in writing before any work starts.
Step 3
Decide in your own time
There is no obligation to go ahead.
Step 4
Fitting and checks
Your local installer fits the new boiler and checks it works with your heating.
Combi boiler questions
Will I lose my hot water tank?
Usually a combi replaces the cylinder and the loft tank, because it heats water on demand. Your installer will confirm what can be removed in your home.
Is a combi right for a home with two bathrooms?
It depends on your water flow and how often two outlets run together. A system boiler with a cylinder can suit bigger households better.
Do you cover villages near Aylesbury?
Yes. We cover Aylesbury, Aston Clinton, Wendover, Haddenham, Princes Risborough, Tring, Thame, Chinnor, Prestwood and Great Missenden, and Winslow.
Do I have to go ahead once I have a price?
No. You get a written price before any work starts, and there is no obligation to go ahead.
Related
Where we work
Aylesbury and the areas around it. Every postcode listed is in our area.
Boundaries: Office for National Statistics (OGL v3.0). Contains OS data © Crown copyright and database right 2024.
Want it sorted for you?
Tell us what's going on and we'll price the job.
- A few quick questions
- No obligation