Oxfordshire · England
Boars Hill Window Mastic
Mastic around window and door frames, sills and patio doors for Boars Hill, backed by a 12-month guarantee. Ask us for a quote.
- Draughty joints inside around the window
- Rain getting in at the frame or under the sill
- White mastic on grey or black frames
What happens on the day
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes most of a day for a typical house, less for a few frames and we leave things clean and tidy. For a village or hamlet like Boars Hill, 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.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Finally we tidy up and check each joint.
Getting ready for the visit
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any water getting in
- Tell us if parking is tricky
Ask for a quote
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or send us an email.
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About our window mastic in Boars Hill
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We are fully insured ARBOMaster approved applicators, and we give a one-year guarantee on the work. If you’re dealing with untidy mastic left by window fitters and cracked internal joints between frame and plaster, we can put it right.
In a village or hamlet like Boars Hill, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or email us.
- Where
- Boars Hill (OX1)
- Wider area
- Oxfordshire
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What happens if it’s left?
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. In a small place like Boars Hill, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first.
What you get with us
- A choice of colours where the product allows
- An ARBOMaster approved applicator
- We leave the area clean and tidy
- One-year guarantee on every job
Read our cost guide or customer reviews.
Frames and glazing around Boars Hill
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Appleton Manor (about 2.9 miles west) nearby, there’s older building stock in the area around Boars Hill as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Schools such as Wootton St Peter's Church of England Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. If you live in an older home near Church of St Peter, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near Oxford station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Boars Hill is about 3 miles north of Abingdon-on-Thames, in Oxfordshire. Boars Hill gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. 443 places in Oxfordshire are on our list, large and small.
Postcode districts we cover here for window mastic: OX1. Whether your property is on Berkeley Road, Jarn Way and Bedwells Heath or anywhere close by, we can help. If you’re just outside Boars Hill, we cover Bayworth (1 mile south-east), Chilswell (1 mile north), Sunningwell (1 mile south), Hinksey Hill (1 mile north-east) and Harcourt Hill (2 miles north). Larger places within reach include Oxford (4 miles north-east), Didcot (8 miles south), Bicester (14 miles north-east), Abingdon-on-Thames (3 miles south), Witney (10 miles north-west) and Carterton (13 miles west).
What’s near Boars Hill
Typical jobs here are in homes near Raleigh Park, The Fox pub and Matthew Arnold School, among other places. The closest station to Boars Hill is Oxford station, about 2.8 miles north. Other landmarks nearby include The Story Museum (2.8 miles north-east) and Westgate Shopping Centre (2.8 miles north-east). Not far away are Lashford Lane Fen and Harcourt Hill.
What we can’t put right
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- A frame that has rotted at the joint
- Damp problems in the wall away from the window
- Faulty window hardware
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Surfaces we seal
- Timber windows & doors
- Window sills
- Composite doors
- Patio & French doors
- uPVC windows
- Aluminium frames
Nearby places to Boars Hill
Other services in Boars Hill
Work for landlords, hotels and businesses
We also work for property managers and facilities teams in Boars Hill and across Oxfordshire. Several sites can go on one quote, and we are fully insured for the work.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
What affects the cost of window mastic
The price is agreed before any work begins. It takes into account:
- The old material and how stubborn it is
- How many rooms, windows or areas are involved
- Any mould that needs treating
- When we can work, for business premises
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Helping us quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The type of property
- Where the job is, and your postcode
- Pictures of the joints, sent by email
- What the problem is, such as mould, gaps, leaks or cracking
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
How the job changes by surface
Patio & French doors
Not every patio door leak is a mastic problem: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We check before we reseal.
uPVC windows
uPVC expands and contracts noticeably with temperature, so we use a flexible, low-modulus sealant. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Boars Hill: your questions answered
Is Boars Hill in your area for window mastic?
Yes, Boars Hill is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Will you come out to Boars Hill?
Yes, Boars Hill is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is it worth trying it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
When is the sealant fully cured?
It depends on the product and the conditions. We tell you how long to leave it before we go.
Do I need to be at home?
It depends on the job. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.
Will there be a smell?
There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Where do you work from?
We work from Crawley. Our applicators cover Boars Hill, along with the rest of our area.
Aftercare tips
A little care helps the new joints last. Our advice:
- Keep paint off silicone joints
- Keep solvents and bleach off the sealant
- Wipe condensation off the frames
- Check the mastic once a year
Keep sill grooves and drainage slots clear, so water can run away instead of sitting against the joint.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.