Oxfordshire · England
Window & door mastic in Murcott, Oxfordshire
Window mastic in Murcott from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Black, perished sealant on frames
- Leaking joints at the ends of sills
- Damp patches on the reveal after heavy rain
Window mastic in Murcott, done properly
There are two joints on most windows. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. Common call-outs are for damp patches on the reveal after heavy rain and hard, cracked sealant around windows, across window sills, composite doors and timber windows & doors.
Around Murcott, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Big or small, you get the same 12-month guarantee in Murcott and across Oxfordshire.
- Place
- Murcott (OX5)
- Wider area
- Oxfordshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Aftercare tips
Good habits help new joints last longer. Our tips:
- Keep drainage slots and sill grooves clear
- Keep solvents and bleach off the sealant
- Walk round the house once a year and look at the joints
- Keep timber frames painted
Try not to touch the new joint while it cures, following the cure time we give you. Keep jet washers away from the frames.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
What we are called out for in Murcott
Frames are never completely still. Sun on a frame makes it expand, and it contracts again overnight, while the brick or render around it hardly moves. If the sealant can’t stretch, it splits.
Common reasons people contact us include:
- Hard, cracked sealant around windows
- Gaps between the frame and the inside reveal
- Leaking joints at the ends of sills
- Gaps left after new windows were fitted
Boarstall Tower, about 2.7 miles east, is one of the historic houses in the wider area around Murcott.
What to look for in a quote
- How the surfaces are prepared before sealing
- What guarantee comes with the work
- What the quote includes, VAT included or not
- Are they insured?
Common questions in Murcott
Do you work for landlords with property near Islip station?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.
Do you cover smaller places like Murcott?
Yes, Murcott is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
What do you need from me for a quote?
Let us know what needs doing and where, plus pictures if you have them. If we need more, we will ask.
How do I get a quote for window mastic in Murcott?
Every job is different, so each one gets its own quote. To get one, phone 0345 464 0079 or drop us an email and tell us what needs doing and where.
Can you get sealant to suit coloured frames?
Normally, yes. Mention the frame colour when you ask for a quote and we will use the nearest match.
Are you fully insured?
Yes, we’re fully insured for every job we do.
Do you take out the old sealant first?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
Will it make a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Window mastic in Murcott: local notes
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Boarstall Tower (about 2.7 miles east) are a reminder that the area around Murcott has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Letting a property close to Islip station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Murcott is about 4 miles south of Bicester, in Oxfordshire. Homes, rented property, offices and hotels in Murcott is covered for window mastic, old or new, large or small. Every job comes with our 12-month guarantee. Our Oxfordshire coverage runs to 443 places, Murcott among them. Our Oxford page covers work nearby, about 7 miles away.
We work across OX5 for window mastic. Close by, we work in Fencott (1 mile north-west), Merton (1 mile north-west), Charlton-on-Otmoor (1 mile west), Upper Arncott (2 miles north-east) and Lower Arncott (2 miles north-east). We also work in nearby towns such as Oxford (7 miles south-west), Bicester (4 miles north), Abingdon-on-Thames (12 miles south-west), Witney (15 miles west), Thame (10 miles south-east) and Kidlington (6 miles west).
Local landmarks in Murcott
The closest station to Murcott is Islip station, roughly 3.7 miles west of the centre. Nearby you will also find Bicester Community Hospital (4.1 miles north) and Bicester Avenue (3.5 miles north). Green spaces nearby include Otmoor RSPB reserve and Graven Hill.
How we quote for window mastic
We don’t publish a price list, because jobs vary so much. What we look at:
- The product the joint needs
- Any working-time requirements on site
- Mould in or behind the old joints
- The number of rooms or windows
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first and agree the price before starting.
Helping us quote
To make quoting easier, let us know:
- Whether it has been sealed before
- Roughly how big the job is
- Any access issues, like height or stairs
- If it’s domestic, commercial or a hotel
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
Nearby places to Murcott
Other services in Murcott
What we do, step by step
Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it usually takes a morning for a couple of windows and a door. For a village or hamlet like Murcott, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- We clear up and check every joint is fully closed.
How to prepare
- For business premises, tell us about site rules or sign-in
- Tell us about any previous sealing or DIY attempts
- Clear the area around the work
Getting a quote
Want a quote for window mastic? Please call 0345 464 0079 or email us with a few details. We will explain what we’d do and give you a clear price before we start.
Related advice
How the job changes by surface
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We seal the frame and let you know about anything else.
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. The threshold and the bottom corners take the most water, so we pay close attention there.
Why deal with it now?
Redecorating is a good moment to renew the mastic. 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 Murcott, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Why us?
- More than 20 years in sealant work
- An ARBOMaster approved applicator
- Domestic, commercial and hotel work
- Old sealant always removed completely