Oxfordshire · England
Frieth Sand Mastic
Professional sand mastic in and around Frieth, with every bit of old sealant taken out first and a 12-month guarantee.
- Cracked mastic round a front door frame
- Gaps where the frame meets the masonry
- Window mastic to renew ahead of painting
What the job involves on each surface
Brick reveals
We rake out the old mastic and pack deep voids before the new mastic goes in.
Tenement and terrace windows
Upper-floor windows need access planning. Tell us the height and we’ll confirm what’s needed.
Sand mastic for homes and businesses in Frieth
Fresh sand mastic forms a skin quite soon, but it takes longer to harden fully. Traditionally, sand mastic is left unpainted and we’ll advise if you’re redecorating. We work on timber door frames, stone surrounds and period & listed homes, and the jobs we see most are mastic worn away on windows facing the weather and tired mastic found when preparing windows for paint.
Outdoor sealant needs dry, clean surfaces, so work on frames around Frieth is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Frieth (RG9)
- Wider area
- Oxfordshire
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What sealant work cannot fix
A few problems are outside what sealant work can do:
- Decayed frames that need repair
- Putty and glazing repairs
- Planning or listed building consent (your local planning authority decides)
If in doubt, phone 0345 464 0079 or email us and we will say what we think before you book.
Joints and surfaces we work on
- Brick reveals
- Timber door frames
- Stone surrounds
- Period & listed homes
- Tenement windows
- Sash and case windows
How it works
On the day, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work begins. Most jobs take a few hours per window, depending on the condition of the joints. Somewhere as small as Frieth, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Clear the area around the work
- Where the joints are inside, avoid wetting them before we arrive
- Mention any tricky access
How to get a quote
We don’t publish a price list. Instead, we send you a clear quote for your job. To get started, ring 0345 464 0079 or email us.
Read more
Nearby places to Frieth
What else we do in Frieth
What affects the cost of sand mastic
The quote reflects the job in front of us. We look at:
- When we can work, for business premises
- The product the joint needs
- The number of rooms or windows
- The number and length of the joints
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- A few pictures by email, if you can
- Whether it’s a home or a business
- How we’d reach the joints
We quote each job on its own, so start by telling us what you need. Simply call 0345 464 0079 or send us an email and describe the job, and pictures are welcome.
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
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.
Common problems we fix in Frieth
Paint, silicone or cement used over old mastic causes problems. They don’t suit the joint, and they normally need raking out.
Signs it’s time to call us include:
- Crumbling sand mastic round a window
- Gaps between timber frames and stone or brick
- Cement or filler used on old window joints that has cracked
- Mastic that needs renewing before redecorating
In the older streets around Church of St John the Evangelist, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What your quote should include
- Who does the work, and how experienced they are
- Whether you can choose the colour
- Which sealant they’ll use, and why
- How the surfaces are prepared before sealing
Windows and doors in Frieth
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as West Wycombe Park House (about 3.2 miles north-east) nearby, there’s older building stock in the area around Frieth as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you look after a building such as Frieth Church of England Combined School, its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to Marlow station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Frieth is about 4 miles north-west of Marlow, in Oxfordshire. Whether you are in the middle of Frieth or further out, sand mastic is available for homes and businesses alike. Across Oxfordshire, we cover 443 places, and Frieth is one of them. For nearby work, see our Reading page.
All of RG9 is within our area for sand mastic. That includes homes and businesses on Frieth Hill, Ellery Rise and Hayles Field and the roads around them. Neighbouring places we cover for sand mastic include Little Frieth (1 mile north-west), Lane End (1 mile north-east), Bolter End (1 mile north), Fingest (1 mile north-west) and Cadmore End (2 miles north-west). Larger places within reach include Thame (11 miles north-west), Henley-on-Thames (6 miles south-west), Benson (11 miles west), Chinnor (7 miles north), Tilehurst (13 miles south-west) and Wallingford (12 miles west).
Local landmarks in Frieth
We work in homes and buildings around Yew Tree pub and the streets around them. The closest station to Frieth is Marlow station, roughly 4.3 miles south-east of the centre. Well-known places in the area include Chiltern Sound Phonograph Museum (3.9 miles south-east) and High Wycombe Castle (4.7 miles east). Green spaces nearby include Yoesden.
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Inspect the joints round the windows every year or so
- Ask the planning authority about consent for listed or conservation-area homes
- Ask a joiner to look at soft timber first
- Plan mastic work ahead of painting
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber and timber that stays wet can rot.
FAQs for Frieth
I let a flat near Marlow station. Can you help?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear price.
Is Frieth within the area you cover?
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 remove the old sealant?
Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.
How long does sand mastic take?
That depends on how much there is to do, but as a guide it takes anything from a few hours to a full day, depending on how many windows. We will give you a better idea when we quote.
Do I need permission for sand mastic on a listed building?
Yes, it’s worth checking. Ask your local planning authority whether consent is needed for listed or conservation-area properties.
Where are you based?
We work from Crawley. We cover Frieth and the rest of Oxfordshire, along with the rest of our area.
Can you seal over the old sealant?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. We remove it all first.
Should I use sand mastic or silicone?
That depends on your windows. Period windows in stone or brick generally suit sand mastic and newer frames generally get a flexible sealant.