Buckinghamshire · England
Window Mastic in Swan Bottom
Window and door frames in Swan Bottom need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Untidy mastic left by window fitters
- White mastic on grey or black frames
- Draughts coming in around windows and doors
The process
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and clear up. Most jobs take a few hours for a few frames, or a day or more for a whole house. For a village or hamlet like Swan Bottom, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
How to prepare
- On commercial sites, let us know about site rules
- Tell us about any water getting in
- Tell us if parking is tricky
Get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, phone 0345 464 0079 or drop us an email.
Related advice
How we handle window mastic in Swan Bottom
The mastic around a window or door seals the gap between the frame and the wall. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. We work on window sills, uPVC windows and aluminium frames, and common reasons people get in touch are rushed sealant from a window installation and cracked or shrunken mastic around the frame.
Somewhere as small as Swan Bottom, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
Every job is covered by our 12-month guarantee, wherever you are in Buckinghamshire.
- Location
- Swan Bottom (HP16)
- Region
- Buckinghamshire
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Common questions in Swan Bottom
Do you work for landlords with property near Great Missenden station?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.
Will you come out to Swan Bottom?
Yes, Swan Bottom is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you seal over the old sealant?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. We remove it all first.
How long does it take to reseal the windows on a house?
A handful of frames is a short visit, while a whole house takes longer. You’ll get a timescale with the quote.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures.
Do you take out the old sealant first?
Yes, every time. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Can you do upstairs windows?
Yes, in most cases. Access is planned before any work starts, so mention the height and anything in the way.
Is it messy?
We keep the work tidy. Nearby surfaces are protected.
Also near Swan Bottom
More services for Swan Bottom
When something else is needed
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Damp problems in the wall away from the window
- A frame that has rotted at the joint
- Faulty window hardware
If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer.
Joints and surfaces we work on
- uPVC windows
- Timber windows & doors
- Window sills
- Composite doors
- Patio & French doors
- Aluminium frames
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
What affects the cost of window mastic
You will get a clear quote before any work starts. It’s based on:
- When we can work, for business premises
- The old material and how stubborn it is
- The product the joint needs
- How many areas need sealing
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or drop us an email and we will talk you through it.
What to tell us for a quote
To help us quote quickly, let us know:
- Pictures of the joints, sent by email
- The rough size of the job
- If someone has resealed it before
- Where the property is
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand.
Leave it or put it right?
Working on frames from a ladder with a sealant gun is not easy, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. Around Swan Bottom, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will go through it with you.
What you get with us
- Experience in homes, commercial sites and hotels
- More than 20 years in sealant work
- Sealant colour chosen to suit
- You choose the colour before work begins
See our cost guide and our reviews.
Landlord and commercial work in Swan Bottom
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will quote.
Housing providers, facilities teams and property managers book us too in Swan Bottom and across Buckinghamshire. Several sites can be quoted together.
Frames and glazing around Swan Bottom
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Cholesbury Manor House (about 2.1 miles north-east) nearby, there’s older building stock in the area around Swan Bottom as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
If you live in an older home near Parish Church of St John the Baptist, the joint between an old wall and a newer frame is normally the first place rain gets in. If you look after a building such as Lee Common Church of England School, its window and door frames need their mastic kept sound, just like a home’s.
Swan Bottom is about 4 miles north-west of Chesham, in Buckinghamshire. We provide window mastic to homeowners, landlords and businesses in Swan Bottom, as part of our work across Buckinghamshire. We cover 263 towns and villages across Buckinghamshire. We also work in Reading, around 23 miles away.
We work across the HP16 postcode area for window mastic. Neighbouring places we cover for window mastic include Lee Common (1 mile south-east), St Leonards (1 mile north-east), Ballinger Common (1 mile south-east), Buckland Common (2 miles north-east) and Cholesbury (2 miles north-east). Larger places within reach include Aylesbury (7 miles north-west), High Wycombe (8 miles south), Chesham (4 miles south-east), Marlow (12 miles south), Amersham (6 miles south-east) and Beaconsfield (9 miles south).
Local landmarks in Swan Bottom
Typical jobs here are in homes near The Old Swan pub, among other places. Swan Bottom’s nearest station is Great Missenden station, roughly 2.5 miles south of the centre. A little further out are Roald Dahl Museum and Story Centre (2.6 miles south) and Chiltern Hospital (3.4 miles south). Green spaces nearby include Dancersend Nature Reserve and Haddington Hill.
What we are called out for in Swan Bottom
Mastic ages in the weather. UV light hardens the outside of the bead, until it loses its stretch and starts to crack.
Common reasons people contact us are:
- Leaking joints at the ends of sills
- Rushed sealant from a window installation
- Black, perished sealant on frames
- Cracked internal joints between frame and plaster
For landlords with property near Great Missenden station, renewing tired window mastic between tenants heads off draught and damp complaints.
Comparing quotes
- Are they insured?
- Who does the work, and how experienced they are
- How the surfaces are prepared before sealing
- Which sealant they’ll use, and why