Oxfordshire · England
Kidlington Window Mastic
Window and door frames in Kidlington need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- A bead that does not match the frame
- Cracked internal joints between frame and plaster
- Untidy mastic left by window fitters
What happens on the day
We bring everything the job needs with us, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. Most jobs take a morning for a couple of windows and a door. Parking around Kidlington is generally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- 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.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know about parking restrictions
- On commercial sites, let us know about site rules
Ask for a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or email us.
Advice
Window mastic for homes and businesses in Kidlington
There are two joints on most windows. Outside, the mastic keeps rain out; inside, the joint between frame and plaster stops draughts and tidies the reveal. We seal one or both, depending on what’s needed. If you have sealant in the wrong colour for the frame and leaking joints at the ends of sills, we can put it right.
Houses in smaller places like Kidlington can stand more in the open than those in a built-up town. That’s hard on the mastic around frames and sills.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we’ll put it right.
- Place
- Kidlington (OX5)
- Wider area
- Oxfordshire
- Cover
- One year on every job
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Kidlington questions
Is Kidlington within the area you cover?
Yes. Kidlington is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near Oxford Parkway station?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
Can I paint over the new sealant?
It depends on the sealant. Some hybrid sealants can be painted; silicone cannot. Tell us if you’re decorating and we’ll choose accordingly.
What does window mastic cost?
It depends on the job, so we quote each one individually. To get one, call 0345 464 0079 or drop us an email with a short description of the job.
Will new mastic stop draughts?
If the draught is coming in around the frame, yes. If it’s through the window’s own seals or a hinge, that’s a different fix, and we’ll say so.
Do you seal inside as well as outside?
Yes. Draughts often come through the inside gap too, so sealing both is often worthwhile.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
Do you take out the old sealant first?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
Landlord and commercial work in Kidlington
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Landlords and letting agents in Kidlington can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
What affects the cost of window mastic
We do not publish a price list. What we look at:
- Access and height
- Which sealant suits the joint
- Any mould that needs treating
- When we can work, for business premises
The cost depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts.
Helping us quote
There’s no need for technical detail. Just tell us:
- Whether it’s a home or a business
- Where the property is
- If someone has resealed it before
- Pictures of the joints, sent by email
We quote each job on its own. Simply phone 0345 464 0079 or email us and describe the job and send pictures if you have them.
What happens if it’s left?
Draughts and leaks don’t always mean new windows. If the frames and glass are in good order, resealing the joints is often all that’s needed. If we find failed glass units or worn seals, we’ll tell you. Homes in smaller places like Kidlington can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.
Why Kidlington customers choose us
- Over 20 years’ experience
- Tidy, careful work
- 12-month guarantee on every job
- Homes, businesses and hotels
Take a look at what affects the cost or our reviews.
What window mastic looks like in Kidlington
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Blenheim Palace (about 3.5 miles north-west) are a reminder that the area around Kidlington has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you live in an older home near Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Letting a property close to Oxford Parkway station? Then renewing tired window mastic between tenants heads off draught and damp complaints. Managing a site like St Thomas More Catholic Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Kidlington is about 5 miles north-west of Oxford, in Oxfordshire. Anywhere in OX5, we can carry out window mastic at your property. Across Oxfordshire, we cover 443 places, and Kidlington is one of them.
Here we cover the OX5 postcode area for window mastic. We cover properties on High Street, Sterling Road and Exeter Road. Main roads around Kidlington include the A4260, which makes travel easy. Other places close to Kidlington include Gosford (1 mile south-east), Hampton Poyle (1 mile north-east), Islip (2 miles east), Bletchingdon (2 miles north) and Enslow (3 miles north). Further out, we also cover Oxford (5 miles south-east), Didcot (15 miles south), Bicester (8 miles north-east), Abingdon-on-Thames (10 miles south), Witney (9 miles west) and Carterton (14 miles west).
Local landmarks in Kidlington
We work in homes and buildings around Gosford Hill School and Red Lion pub. The nearest railway station is Oxford Parkway station, about 1.3 miles south. Other landmarks nearby include Oxford Castle (4.9 miles south) and Acland Hospital (4.3 miles south). Open spaces near Kidlington include Hook Meadow and The Trap Grounds.
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Look round the frames every year or so
- Don’t use solvent cleaners on the joint
- Use gentle cleaners on frames and sealant
- Keep paint and stain on wooden frames in good order
Try not to touch the new joint while it cures, following the cure time we give you. Do not point a pressure washer at the joints.
A failed joint lets water into the wall a little at a time. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.
Towns and villages near Kidlington
More services for Kidlington
DIY versus a professional finish
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
When it isn’t the sealant
A few problems are outside what sealant work can do:
- Broken hinges, locks or handles
- A frame that has rotted at the joint
- A door that needs adjusting, rehanging or new seals
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think before booking.
What we seal
- Timber windows & doors
- Composite doors
- Patio & French doors
- Window sills
- Aluminium frames
- uPVC windows