Surrey · England
Sand Mastic in Hammer
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Hammer, backed by a 12-month guarantee. Call for a quick quote.
- Mastic round period door frames that has failed
- Mastic dropping out of the joint
- Open joints round the window box
Sand mastic for homes and businesses in Hammer
We work across Hammer renewing sand mastic on sash windows and doors. Every joint is cleaned out and filled by hand, finished to suit the masonry. If you’re dealing with old sand mastic that has cracked, crumbled or fallen out and silicone on a period window that looks wrong, we can put it right, whatever the surface.
Mastic can only go onto a dry, clean joint, so window work in Hammer is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Where
- Hammer (GU27)
- Region
- Surrey
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Why it’s worth doing now in Hammer
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and blends with the stone or brick. Around Hammer, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit is normally more efficient than separate visits. You’ll get one clear quote for the whole job.
Why choose Mr Mastic in Hammer
- An ARBOMaster approved applicator
- Domestic, commercial and hotel work
- 180+ five-star Google reviews
- Fully insured
Take a look at what affects the cost or what customers say.
Do you need sand mastic in Hammer?
Most of it is simply age. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.
Keep an eye out for any of the following:
- Silicone on a period window that looks wrong
- Old cement repairs round a window that have failed
- Draughts and rain around sash boxes
- Window mastic to renew ahead of painting
If you let a flat or house near Haslemere station, any sash windows need sound mastic to keep draughts and rain out.
Questions to ask before you book
- Whether they seal over old material or remove it
- Who does the work, and how experienced they are
- What product goes in the joint
- How the colour is chosen
When it is not the sealant
Before booking, it’s worth knowing the limits:
- Masonry that needs repairing
- Timber that has rotted
- Whether work needs listed building consent
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.
Joints and surfaces we work on
- Period & listed homes
- Brick reveals
- Sash and case windows
- Tenement windows
- Timber door frames
- Stone surrounds
Nearby places to Hammer
More services for Hammer
Hammer questions
Is Hammer within the area you cover?
Yes, Hammer is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you do sand mastic in Hammer?
Yes, Hammer is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or email us and let us know what needs doing, and we’ll send you a clear quote.
Are you fully insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
What does sand mastic cost?
Every job is different, so each one gets its own quote. To get one, ring 0345 464 0079 or send us an email with a short description of the job.
Can I add another job to the visit?
Of course. Doing several areas at once is generally more efficient.
Can I paint the new mastic?
It’s traditionally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
Is consent needed for window work on a listed home?
Your local planning authority is the one to ask. They decide whether consent is needed.
How long does the job take?
It depends on the size of the job, but as a guide it takes a few hours per window, depending on the condition of the joints. We’ll tell you when we quote.
Sand mastic in Hammer: local notes
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.
If you look after a building such as Woolmer Hill School, larger buildings have plenty of frames, and the mastic around each one ages. For an older house near a landmark such as St. Stephen's Church, the joint between an old wall and a newer frame is usually the first place rain gets in.
Hammer is about 9 miles south of Farnham, in Surrey. We provide sand mastic to homeowners, landlords and businesses in Hammer and nearby, as part of our work across Surrey. Our Surrey coverage runs to 395 places, and Hammer is one of them. We also work in Portsmouth, about 24 miles from Hammer.
Every address in GU27 is within our area for sand mastic, from the main roads to the quietest streets. That includes homes and businesses on Hammer Lane, Moor Road and Copse Road. Neighbouring places we cover for sand mastic include Woolmer Hill (1 mile south), Hammer Bottom (1 mile west), Shottermill (1 mile east), Bramshott Chase (1 mile north) and Linchmere (1 mile south-west). Larger places within reach include Guildford (14 miles north-east), Farnham (9 miles north), Cranleigh (12 miles east), Ash (11 miles north), Godalming (9 miles north-east) and Farncombe (10 miles north-east).
Around Hammer
Around Hammer, our work takes us to homes and buildings near The Prince of Wales pub and Camelsdale Primary School. The closest station to Hammer is Haslemere station, roughly 1.5 miles east of the centre. Well-known places in the area include Haslemere and District Hospital (2 miles east). For a walk, there’s Lynchmere Commons and Wheeler's Down.
The process
At the end, we look at the finished work together and explain the cure time. The visit itself generally takes a few hours for a single window, longer for several, depending on the size of the job. Somewhere as small as Hammer, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each surround is checked first.
- 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.
How to prepare
- Mention any leaks or damp you’ve noticed
- For business premises, tell us about site rules or sign-in
- Try not to wet indoor joints just before the visit
Getting a quote
There’s no standard price list. Instead, we give you a clear price for your job. To arrange one, call 0345 464 0079 or send us an email.
Read more
For landlords and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Aftercare tips
Once the sealant has cured, a few habits help it last:
- Do not paint over the new mastic
- Clear gutters so water doesn’t pour onto the windows
- Sort the mastic before the decorators arrive
- Avoid patching sand mastic with silicone
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
What affects the cost of sand mastic
Your quote is based on your job. We take into account:
- The number and length of the joints
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
The cost reflects the work involved, not guesswork. That is why we ask a few questions first and agree the price before starting.
What we need to know
To make quoting easier, let us know:
- Any access issues, like height or stairs
- A few photos by email, if you can
- The type of property
- Whether it has been sealed before
Want a quote for sand mastic? Please call 0345 464 0079 or drop us an email with a few details. We will explain what we’d do and send you a clear quote before work begins.