Buckinghamshire · England
Window & door mastic in Hawridge, Buckinghamshire
We cover Hawridge for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Draughts coming in around windows and doors
- Damp patches on the reveal after heavy rain
- A bead that does not match the frame
About our window mastic in Hawridge
Behind a thin line of old mastic there’s sometimes a deep void. Packing it solid with sealant gives a joint that cannot flex, so we fit backing rod to set the right depth. The sealant then grips the two sides it should. We work on window sills, timber windows & doors and composite doors, and common reasons people get in touch are cracked sealant at the sill ends and hard, cracked sealant around windows.
Mastic can only go onto a dry, clean joint, so window work in Hawridge is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.

- Place
- Hawridge (HP5)
- Wider area
- Buckinghamshire
- Guarantee
- One year on every job
- Price
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Hawridge questions
Do you cover smaller places like Hawridge?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you work for landlords with property near Berkhamsted station?
Yes. We work for letting agents and landlords as well as householders. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Where do you work from?
We are based in Crawley, and we work across South East England, London and Scotland.
What sealant do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
Can you do the inside joint as well?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We do one or both.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us and we are fully insured.
What affects the cost of window mastic
Jobs vary more than people expect. The main factors:
- Whether old sealant or filler has to be cut out
- Any mould that needs treating
- The product the joint needs
- Any working-time requirements on site
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
Asking for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- What’s wrong with the joints now
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
- A few photos by email, if you can
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, call 0345 464 0079 or send us an email.
Common problems we fix in Hawridge
On timber frames, paint and putty build up around the joint. Mastic painted over many times cracks with the paint, and the wood moves with damp as well as heat.
People normally contact us after spotting one of these:
- Leaking joints at the ends of sills
- Gaps left after new windows were fitted
- Cracked or shrunken mastic around the frame
- Draughty joints inside around the window
Letting a property close to Berkhamsted station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
What your quote should include
- How the surfaces are prepared before sealing
- Who turns up on the day
- Whether all the old sealant comes out first
- Whether the sealant suits the joint
When it is not the sealant
To be straight with you, some problems need a different trade:
- Penetrating damp from a failed cavity tray or render
- Soft or decayed wood in the frame
- A door that needs adjusting, rehanging or new seals
If in doubt, ring 0345 464 0079 or email us and we will say what we think before booking.
Joints and surfaces we work on
- Composite doors
- Timber windows & doors
- Aluminium frames
- uPVC windows
- Window sills
- Patio & French doors
How it works
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take most of a day for a typical house, less for a few frames. Somewhere as small as Hawridge, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check each frame and agree which ones need doing.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
How to prepare
- Tell us about any water getting in
- Keep children and pets away from the work area
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved.
Advice
What happens if it’s left?
If you are painting or rendering, reseal at the same time. A clean new bead makes new paint or render look finished, and it’s easier while the walls are being worked on anyway. Where a wall is exposed, as many are in small places like Hawridge, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
What you pay reflects the work, not a rough estimate. That is why we ask about the job first.
Why choose Mr Mastic in Hawridge
- 180+ five-star Google reviews
- 20+ years of sealant experience
- Old sealant always removed completely
- Trusted Arbo and Everbuild sealants
Take a look at what affects the cost and customer reviews.
Hawridge homes and the weather
With historic houses such as Cholesbury Manor House (about 0.9 miles west) nearby, there’s older building stock in the area around Hawridge 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. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Managing a site like Hawridge and Cholesbury Church of England School? Then larger buildings have plenty of frames, and the mastic around each one ages. If you live in an older home near Church of St Mary, the joint between an old wall and a newer frame is generally the first place rain gets in.
Hawridge is about 3 miles west of Berkhamsted, in Buckinghamshire. We carry out window mastic for homes and businesses in Hawridge, as part of our work across Buckinghamshire. Hawridge is one of 263 places in Buckinghamshire we cover. We also work in Reading, about 26 miles from Hawridge.
We work across the HP5 postcode area for window mastic. We cover properties on Hawridge Common and Hawridge Vale. Other places close to Hawridge include Heath End (1 mile east), Bellingdon (1 mile south), Cholesbury (1 mile west), Asheridge (1 mile south) and Buckland Common (2 miles west). We also work in nearby towns such as Aylesbury (9 miles north-west), High Wycombe (10 miles south-west), Chesham (3 miles south), Marlow (14 miles south-west), Amersham (5 miles south) and Beaconsfield (10 miles south).
Local landmarks in Hawridge
Locally, jobs take us to homes and businesses close to The Rose & Crown pub, among other places. For rail, the closest station is Berkhamsted station, about 3.2 miles east. Nearby you will also find Hawridge Court (0.6 miles south-east) and Chiltern Hospital (4.9 miles south-west). Green spaces nearby include Sands Bank and Pavis Wood.
Towns and villages near Hawridge
More services for Hawridge
Surface by surface
Window sills
Every drop off the glass ends up on the sill, so the sill ends and the joint under the frame are vital. Each is cleaned out and resealed.
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so the joint must stay flexible. We seal onto sound, dry paintwork or timber.
Landlords, agents and businesses in Hawridge
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
We work for letting agents and landlords as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
