Hertfordshire · England
Tyttenhanger Sand Mastic
Professional sand mastic in and around Tyttenhanger, with old sealant always removed completely and a 12-month guarantee.
- Weathered mastic on the most exposed windows
- Draughts and rain around sash boxes
- Old sand mastic that has cracked, crumbled or fallen out
Different surfaces, different methods
Stone surrounds
We take care not to mark the stone when the old mastic comes out.
Brick reveals
An open joint at a brick reveal lets weather in. Renewing the mastic closes it.
Sand mastic for homes and businesses in Tyttenhanger
If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Sand mastic is often favoured as a like-for-like material. If you have gaps between timber frames and stone or brick and old sand mastic that has cracked, crumbled or fallen out, we can put it right.
In a village or hamlet like Tyttenhanger, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
Each job carries a 12-month guarantee, large or small.
- Location
- Tyttenhanger (AL4)
- Region
- Hertfordshire
- Cover
- 12 months on all our work
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Nearby places to Tyttenhanger
What else we do in Tyttenhanger
FAQs for Tyttenhanger
Will you come out to Tyttenhanger?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Tyttenhanger in your area for sand mastic?
Yes. We work across London and the South East, and Tyttenhanger is part of that. You can call 0345 464 0079 or send us an email and tell us what needs doing.
Do you work for landlords and businesses?
Yes, regularly. Several properties can go on one quote.
What information do you need?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply ring 0345 464 0079 or send us an email.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses.
Can you do several jobs on one visit?
Yes. More than one area can be quoted together.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
Does someone need to be in?
That depends on where the joints are. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Why act early in Tyttenhanger
If you’re redecorating, renew the mastic first. Painting over failed mastic doesn’t seal it and traditional guidance is to leave the new mastic unpainted. In a small place like Tyttenhanger, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
What you pay reflects the work, not guesswork. That is why we ask a few questions first.
Why book with us
- An ARBOMaster approved applicator
- Domestic, commercial and hotel work
- One-year guarantee on every job
- Neat joints and a tidy finish
Read our cost guide and what customers say.
DIY sealant or a professional job?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
If you are 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 does not work out, we can still put it right.
Quotes for sand mastic in Tyttenhanger
Every job gets its own quote. These are the things that affect it:
- The number of rooms or windows
- Mould in or behind the old joints
- Working hours on commercial sites
- The old material and how stubborn it is
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or send us an email.
Helping us quote
When you contact us, it’s useful to know:
- If someone has resealed it before
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
- How we’d reach the joints
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
When it isn’t the sealant
A few problems are outside what sealant work can do:
- Damaged stone surrounds
- Sash cords, weights and draught-proofing of the sashes
- Decisions on consent for listed homes
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think.
What we seal
- Timber door frames
- Period & listed homes
- Sash and case windows
- Stone surrounds
- Tenement windows
- Brick reveals
Landlords, agents and businesses in Tyttenhanger
We also work for property managers and facilities teams in Tyttenhanger and across Hertfordshire. We can quote a run of properties together, and we are fully insured.
In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Sand mastic in Tyttenhanger: local notes
Historic houses like Batchwood Hall (about 3.3 miles north-west) are a reminder that the area around Tyttenhanger 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. 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.
For site and facilities teams at buildings such as Nicholas Breakspear School, larger buildings have plenty of frames, and the mastic around each one ages. If you live in an older home near Church of St Mark, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Letting a property close to St Albans station? Then any sash windows need sound mastic to keep draughts and rain out.
Tyttenhanger is about 2 miles south-east of St Albans, in Hertfordshire. We carry out sand mastic for householders, landlords and businesses in Tyttenhanger and nearby. Tyttenhanger is one of 381 places in Hertfordshire where we work. For nearby work, see our London page.
Jobs for sand mastic in AL4 works the same way as everywhere else we cover. Local streets include Highfield Lane and Tyttenhanger Green, and we cover them all. Neighbouring places we cover for sand mastic include London Colney (1 mile south), Sleapshyde (1 mile north-east), Smallford (2 miles north-east), Broad Colney (2 miles south) and Colney Heath (2 miles east). Larger places within reach include Watford (7 miles south-west), Hemel Hempstead (7 miles west), Stevenage (13 miles north), Welwyn Garden City (6 miles north-east), Harpenden (6 miles north-west) and Hitchin (15 miles north).
Near you in Tyttenhanger
We work in homes and buildings around The Plough pub, Highfield Park and Windermere Primary School. The nearest railway station is St Albans station, roughly 1.7 miles north-west of the centre. Nearby you’ll also find Hill End Hospital (0.9 miles north-west) and St Albans Musical Museum (1.9 miles north-west). For a walk, there’s Colney Heath Local Nature Reserve and Verulamium Lake.
What we do, step by step
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes anything from a few hours to a full day, depending on how many windows, including the tidy-up. Somewhere as small as Tyttenhanger, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
How to prepare
- Let us know if you’ve seen damp or leaks
- Mention if the joints have been sealed before
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Need a quote? Please ring 0345 464 0079 or email us and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.