Slough · England
Window Mastic in Cippenham
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Cippenham. Fully insured, ARBOMaster approved and guaranteed for a year.
- Old mastic that has gone black or come away
- Leaking joints at the ends of sills
- Water coming in at the bottom corners of a door
What sealant work cannot fix
New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:
- Worn gaskets, brush seals or a door that has dropped
- Damp problems in the wall away from the window
- Faulty window hardware
If in doubt, call 0345 464 0079 or email us and we’ll say what we think.
Joints and surfaces we work on
- uPVC windows
- Aluminium frames
- Window sills
- Timber windows & doors
- Patio & French doors
- Composite doors
Window mastic in Cippenham
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. The old mastic is removed and the joint resealed with a flexible exterior sealant. We work on window sills, timber windows & doors and composite doors, and common reasons people get in touch are gaps left after new windows were fitted and old mastic that has gone black or come away.
Homes around Cippenham range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
You’re covered for a year from the day we finish. If anything is not right with it, ring 0345 464 0079 or send us an email.
- Location
- Cippenham (SL1, SL2)
- Region
- Slough
- Cover
- 12 months on all our work
- Quote
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What the job involves on each surface
uPVC windows
We clean the frame edge carefully so the plastic isn’t marked, then the sealant goes in between frame and wall and tooled smooth.
Timber windows & doors
Timber moves with moisture as well as heat, so the joint must stay flexible. We seal onto sound, dry paintwork or timber.
The process
When we arrive, we start by going over the job with you. We protect the surfaces around the joints before work begins. Most jobs take a morning for a couple of windows and a door. In a smaller place like Cippenham, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us about any water getting in
- Mention any parking rules near the property
Getting a quote
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job, and we’ll come back to you with a quote.
Related advice
What window mastic looks like in Cippenham
With historic houses such as Dorney Court (about 1.6 miles south-west) nearby, there’s older building stock in the area around Cippenham as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
For an older house near a landmark such as St. Andrew's Shared Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Letting a property close to Burnham station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Cippenham is about 1 mile west of Slough, in Slough. Homes, rented property, offices and hotels in Cippenham is covered for window mastic. Every job comes with our one-year guarantee. We cover 31 towns and villages across Slough. Reading is on our list too, around 15 miles away.
All of SL1 and SL2 is covered for window mastic, from the main roads to the quietest streets. Window mastic is available to properties on Bath Road, Earls Lane and Eagle Road. Neighbouring places we cover for window mastic include Huntercombe (1 mile north-west), Lake End (1 mile west), Dorney (1 mile south-west), Slough (1 mile east) and Burnham (1 mile north-west). Within a short drive, we also cover Langley (4 miles east), Datchet (3 miles south-east), Stoke Poges (3 miles north-east), Ditton (4 miles south-east), Farnham Common (3 miles north) and Wexham Court (3 miles east). Being one of Slough’s larger places, Cippenham has every kind of property, from flats to offices.
Near you in Cippenham
Around Cippenham, our work takes us to homes and buildings near The Westgate School, Westgate School and Haymill Valley, among other places. The nearest railway station is Burnham station, roughly 0.6 miles north-west. Other landmarks nearby include Windsor Castle (2.7 miles south-east) and The History On Wheels Museum (1.1 miles south-east). Green spaces nearby include Bray Pit and Taplow Lake.
More services for Cippenham
How we quote for window mastic
There’s no set price list, because no two jobs are the same. What we look at:
- The old material and how stubborn it is
- Mould in or behind the old joints
- Working hours on commercial sites
- Access and height
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What to tell us for a quote
There’s no need for technical detail. It helps if you can tell us:
- The rough size of the job
- If it’s domestic, commercial or a hotel
- Where the property is
- Photos by email, if that is easy
For window mastic in Cippenham, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll quote.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Common problems we fix in Cippenham
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar didn’t grip properly, so it comes away long before its time.
Most people get in touch when they notice one of these:
- Gaps left after new windows were fitted
- Black, perished sealant on frames
- Cold air getting in at the frame edge
- Damp patches on the reveal after heavy rain
If you look after a building such as Cippenham Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- Who turns up on the day
- How hidden problems are handled
- Whether you can choose the colour
- Whether VAT is included
Why it’s worth doing now in Cippenham
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. Resealing now is a small job by comparison. Around Cippenham, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why us?
- 4.9 on Google from 180+ five-star reviews
- A sealant colour to suit the surroundings
- White, clear, grey or coloured to suit, where the product allows
- Neat joints and a tidy finish
See our cost guide or what customers say.
FAQs for Cippenham
Do you cover smaller places like Cippenham?
Yes, Cippenham is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Burnham station?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Where do you work from?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
Do the sealants smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
How many windows can you do in a day?
It depends on access, the old mastic and the size of the frames. We will tell you how long your job needs when we quote.
Are you insured?
Yes. We are fully insured, and we’ve been doing sealant work for more than 20 years.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.