Oxfordshire · England
Wheatley Sand Mastic
Sand mastic across Wheatley and nearby, with old sealant always removed completely.
- Old cement repairs round a window that have failed
- Crumbling sand mastic round a window
- Mastic that needs renewing before redecorating
How we handle sand mastic in Wheatley
Sand mastic suits most period window surrounds. Newer frames generally get a flexible sealant instead, and we will talk through which suits your home. If you have cement or filler used on old window joints that has cracked and window mastic to renew ahead of painting, we can put it right, on period & listed homes, timber door frames and tenement windows alike.
In smaller places like Wheatley, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.
All our work comes with a one-year guarantee.

- Place
- Wheatley (OX33)
- Region
- Oxfordshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How we quote for sand mastic
We do not publish a price list, because jobs vary so much. What we look at:
- Whether there’s mould to deal with
- The size of the job
- Any working-time requirements on site
- Whether old sealant or filler has to be cut out
What it costs depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The address or postcode of the job
- If someone has resealed it before
- Whether it’s a home or a business
- Pictures of the joints, sent by email
For a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.
What happens on the day
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take anything from a few hours to a full day, depending on how many windows. In a smaller place like Wheatley, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- We dress the surface so it sits neatly against the masonry.
How to prepare
- Let us know if you’ve seen damp or leaks
- Keep children and pets away from the work area
- Mention any sign-in or site rules at work premises
How to get a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we’ll take it from there.
Related advice
Should I try it myself first?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Frames and glazing around Wheatley
With historic houses such as Garsington Manor (about 2.5 miles south-west) nearby, there’s older building stock in the area around Wheatley as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you look after a building such as Wheatley Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Wheatley is about 4 miles east of Oxford, in Oxfordshire. Homes, rented property, offices and hotels in Wheatley is covered for sand mastic. The work is guaranteed for a year. Our Oxfordshire coverage runs to 443 places, and Wheatley is one of them.
All of OX33 is covered for sand mastic. We cover properties on Church Road, High Street and Station Road and the roads around them. We also cover the places around Wheatley: Holton (1 mile north), Littleworth (1 mile west), Cuddesdon (2 miles south), Forest Hill (2 miles north-west) and Horspath (2 miles west). Larger places within reach include Oxford (4 miles west), Didcot (11 miles south-west), Bicester (11 miles north), Abingdon-on-Thames (8 miles south-west), Thame (7 miles east) and Kidlington (8 miles north-west).
What’s near Wheatley
In Wheatley, that means homes and buildings near 19 pub and Wheatley Park School. Other landmarks nearby include Slade Hospital (2.8 miles west) and Templars Square (3.6 miles west). For a walk, there’s CS Lewis Nature Reserve and Shotover.
Wheatley questions
Can you do sand mastic in Wheatley?
Yes. We work across London and the South East, and Wheatley is part of that. You can ring 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear quote.
Will you come out to Wheatley?
Yes. Wheatley is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you take out the old sealant first?
Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.
Should I use sand mastic or silicone?
We’ll help you decide. Period homes often look best with sand mastic and newer frames suit modern sealant.
Can I paint the new mastic?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Does someone need to be in?
We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.
Is it messy?
No. We protect the surfaces around the joints, and we tidy up before we go.
Do you do commercial work?
Yes. We have worked for hotels, offices and other businesses and we’re fully insured.
Why act early in Wheatley
If you are redecorating, renew the mastic first. Painting over failed mastic does not seal it, and the new mastic is traditionally left unpainted. In an older home around Wheatley, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
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. Ask us for a quote and we will go through it with you.
Why choose Mr Mastic in Wheatley
- Arbo and Everbuild products
- Over 20 years’ experience
- Full insurance on every job
- 12-month guarantee on every job
Take a look at what affects the cost and our reviews.
Do you need sand mastic in Wheatley?
Rain on the window surround works into any crack and loosens it further. Windows facing the weather tend to go first.
Most people get in touch after spotting something like this:
- Gaps between timber frames and stone or brick
- Failed mastic on an exposed elevation
- Patchy fillers round a sash window
- Crumbling sand mastic round a window
Homes close to Church of St Mary include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Questions to ask before booking
- Whether all the old sealant comes out first
- What preparation is included
- What guarantee comes with the work
- Which colour the sealant will be
Nearby places to Wheatley
More services for Wheatley
Work for landlords, hotels and businesses
We work for letting agents and landlords as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Different surfaces, different methods
Sash and case windows
On a sash window, the mastic joint shows on the outside, so a neat, even finish matters.
Period and listed homes
Sand mastic is the like-for-like choice for many period homes. On listed buildings, check with your planning authority first.
