Surrey · England
Sand mastic for sash & case windows in Dockenfield, Surrey
Professional sand mastic in and around Dockenfield, with old sealant always removed completely.
- Mastic worn away on windows facing the weather
- Cracked mastic round a front door frame
- Old sand mastic that has cracked, crumbled or fallen out
Keeping the joints in good condition
Aftercare is simple:
- Ask a joiner to look at soft timber first
- Check the mastic when you check the paintwork
- Make sure water runs off the sill
- Do not paint over the new mastic
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
About our sand mastic in Dockenfield
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s made from sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. If you are dealing with mastic that needs renewing before redecorating and gaps round a timber door in stone or brick, we can put it right, on sash and case windows, timber door frames and tenement windows alike.
Homes in small places like Dockenfield often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
Every job is covered by our 12-month guarantee.
- Place
- Dockenfield (GU10)
- Region
- Surrey
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Landlords, agents and businesses in Dockenfield
We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured.
For anyone letting property in or around Dockenfield, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
Windows and doors in Dockenfield
Historic houses like Farnham Castle (about 4.1 miles north) are a reminder that the area around Dockenfield 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. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to The Church Of The Good Shepherd include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
Dockenfield is about 4 miles south of Farnham, in Surrey. For sand mastic in and around Dockenfield, it’s easy to get a quote: please call 0345 464 0079 or email us. We cover Surrey from our Crawley base, Dockenfield included. Our area takes in 395 places across Surrey. There’s also a page for Reading, roughly 21 miles from Dockenfield.
Every address in GU10 is covered for sand mastic, from the main roads to the quietest streets. Sand mastic is available to properties on The Street and Lake Lane. Other places close to Dockenfield include Batt's Corner (1 mile north-west), Frithend (1 mile west), Wishanger Common (1 mile south-east), Bucks Horn Oak (1 mile north-west) and Rowledge (2 miles north). We also work in nearby towns such as Guildford (12 miles north-east), Woking (15 miles north-east), Camberley (13 miles north), Farnham (4 miles north), Frimley (11 miles north) and Haslemere (7 miles south-east).
What’s near Dockenfield
For rail, the closest station is Bentley (Hampshire) station, roughly 2.4 miles north-west. Other landmarks nearby include Powderham Castle (4 miles north) and Chase Community Hospital (4.1 miles south-west). Open spaces near Dockenfield include Farnham Heath.
Questions from Dockenfield
Can you do sand mastic in Dockenfield?
Yes, Dockenfield is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.
Do you cover smaller places like Dockenfield?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will explain our choice.
I’m a tenant. Can you help?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
How long does the job take?
Typically it takes anything from a few hours to a full day, depending on how many windows. Larger jobs naturally take longer.
Which is right for my windows, sand mastic or modern sealant?
Sand mastic generally suits period timber windows best. Modern frames normally suit a flexible sealant.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Do the sealants smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Signs you need sand mastic in Dockenfield
Most of it is simply age. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
Common reasons people contact us include:
- Cement or filler used on old window joints that has cracked
- Draughts and rain around sash boxes
- Weathered mastic on the most exposed windows
- Mastic dropping out of the joint
Letting a property close to Bentley (Hampshire) station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
What your quote should include
- What guarantee comes with the work
- Whether they seal over old material or remove it
- Is VAT in the price?
- Who turns up on the day
The process
We bring everything the job needs with us, so you don’t need to buy or prepare anything. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Dockenfield, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic isn’t too thick.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Before we arrive
- Tell us if parking is tricky
- Mention any tricky access
- Keep children and pets away from the work area
Ask for a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you are ready, ring 0345 464 0079 or drop us an email.
Advice
Why deal with it now?
New mastic over crumbling mastic won’t hold. We remove the loose material first so the new mastic stays put. Older cottages and farmhouses around Dockenfield can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
A failed joint rarely gets cheaper to fix by waiting. If you’re unsure, phone 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Why book with us
- Domestic, commercial and hotel work
- Fully insured
- 12-month guarantee on every job
- Sanitary silicone with an anti-fungal additive in wet areas
See what affects the cost or our reviews.
Nearby places to Dockenfield
Other services in Dockenfield
What sealant work cannot fix
Before booking, it’s worth knowing the limits too:
- Decisions on consent for listed homes
- Sashes that need overhauling
- Putty and glazing repairs
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before you book.
Joints and surfaces we work on
- Stone surrounds
- Period & listed homes
- Brick reveals
- Sash and case windows
- Timber door frames
- Tenement windows
DIY sealant or a professional job?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.