Hertfordshire · England
Sand Mastic in Temple End
Our applicators work in Temple End on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Patchy fillers round a sash window
- Gaps between timber frames and stone or brick
- A silicone bead on a sash window that spoils the look
What we do, step by step
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and clear up. It generally takes a few hours per window, depending on the condition of the joints. Somewhere like Temple End needs a little journey planning: 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 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.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
How to prepare
- Tell us about any water getting in
- Tell us about any previous sealing or DIY attempts
- Tell us if parking is tricky
Getting a quote
There’s no standard price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or drop us an email.
Read more
How we handle sand mastic in Temple End
Silicone on a period window often looks wrong and is not always the right material. Sand mastic is the traditional choice, and we can replace one with the other. If you’re dealing with a silicone bead on a sash window that spoils the look and patchy fillers round a sash window, we can help, on sash and case windows, period & listed homes and tenement windows alike.
Somewhere as small as Temple End, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or send us an email.
- Where
- Temple End (SG4)
- Wider area
- Hertfordshire
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What we cannot put right
A few problems are outside what sealant work can do:
- Timber that has rotted
- Damaged stone surrounds
- Planning or listed building consent (your local planning authority decides)
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly before you book.
Surfaces we seal
- Brick reveals
- Sash and case windows
- Period & listed homes
- Tenement windows
- Stone surrounds
- Timber door frames
Common questions in Temple End
Do you cover smaller places like Temple End?
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.
Can you do sand mastic in Temple End?
Yes, Temple End is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and let us know what needs doing, and we will send you a clear quote.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Can I choose the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Do you work for letting agents?
Yes, often. We can quote for several properties at once, and between tenancies is a good time for the work.
Can new sealant go over the old?
No, and we never do. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Is it possible to paint over sand mastic?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
How the job changes by surface
Timber door frames
Round a period front door, sand mastic gives the right look.
Tenement and terrace windows
Windows above ground floor need the right access. Let us know the floor and we will confirm access.
Also near Temple End
Other services in Temple End
Common problems we fix in Temple End
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows, which is a good time to renew it.
The problems people normally mention when they call are:
- Mastic dropping out of the joint
- Window mastic to renew ahead of painting
- Failed mastic on an exposed elevation
- Old cement repairs round a window that have failed
Managing a site like Hitchin Boys' School? Then its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- Whether all the old sealant comes out first
- What the quote includes, VAT included or not
- What happens if the job turns out different
- Who turns up on the day
Windows and doors in Temple End
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Hitchin station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Temple End is about 2 miles south-west of Hitchin, in Hertfordshire. Homes, rented property, offices and hotels in Temple End is covered for sand mastic, old or new, large or small. The work is guaranteed for a year. Our Hertfordshire coverage runs to 381 places, and Temple End is one of them. You can also see our page for London, about 31 miles away.
Jobs for sand mastic in SG4 is quoted and booked the same way as anywhere else. Other places close to Temple End include Great Offley (2 miles west), Ley Green (2 miles south), The Flints (2 miles west), Pirton (3 miles north-west) and Pegsdon (3 miles north-west). We also work in nearby towns such as Hemel Hempstead (14 miles south-west), Stevenage (5 miles east), St Albans (13 miles south), Welwyn Garden City (10 miles south-east), Harpenden (8 miles south) and Hatfield (12 miles south).
Local landmarks in Temple End
Locally, jobs take us to homes and businesses close to Butts Close, among other places. For rail, the closest station is Hitchin station, about 2.1 miles north-east of the centre. Nearby you’ll also find Lister Hospital (3.8 miles east) and North Hertfordshire Museum (1.4 miles north-east). Open spaces near Temple End include Markham's Hill and Oughtonhead Nature Reserve.
How to look after the new joints
After the cure time, these simple habits help:
- Make sure water runs off the sill
- Go gently near the mastic when preparing windows
- Don’t paint over the new mastic
- Renew mastic before redecorating the windows
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
Landlord and commercial work in Temple End
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Housing providers, facilities teams and property managers book us too in Temple End and across Hertfordshire. We can quote a run of properties together.
Leave it or put it right?
If you’re redecorating, renew the mastic first. Painting over failed mastic does not seal it, and the new mastic is traditionally left unpainted. In a small place like Temple End, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we will explain what it covers.
Why choose Mr Mastic in Temple End
- 12-month guarantee on every job
- More than 20 years in sealant work
- An ARBOMaster approved applicator
- Anti-fungal sanitary silicone in wet areas
Read our cost guide and our reviews.