Hertfordshire · England
Brickendon Sand Mastic
We cover Brickendon for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- A silicone bead on a sash window that spoils the look
- Crumbling sand mastic round a window
- Gaps round a timber door in stone or brick
How we handle sand mastic in Brickendon
Across Brickendon, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand for a neat, traditional finish. Typical jobs include gaps where the frame meets the masonry and draughty sash windows at the surround, across brick reveals, period & listed homes and tenement windows.
In a village or hamlet like Brickendon, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
Big or small, it’s backed by our one-year guarantee in Brickendon and across Hertfordshire.

- Place
- Brickendon (SG13)
- Wider area
- Hertfordshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What we do, step by step
Before we leave, we go over the finished joints with you and explain the cure time. The visit itself generally takes anything from a few hours to a full day, depending on how many windows, depending on the size of the job. In a small place like Brickendon, access is usually the main thing to plan. 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.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Move anything stored near the joints
- Mention any leaks or damp you’ve noticed
- Mention any parking rules near the property
Getting a quote
Need a quote? Please call 0345 464 0079 or drop us an email with a few details. We will explain what we’d do and give you a clear quote before any work starts.
Read more
What we can’t put right
New sealant cannot fix everything, and we’d rather say so up front. It will not solve:
- Broken panes
- Crumbling stone or brickwork round the window
- Sash cords, weights and draught-proofing of the sashes
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
What we seal
- Stone surrounds
- Timber door frames
- Tenement windows
- Sash and case windows
- Brick reveals
- Period & listed homes
How the job changes by surface
Stone surrounds
Sand mastic sits naturally against stone. The finish blends with the masonry.
Tenement and terrace windows
Where a building is shared, window work may involve neighbours, so check who is responsible first.
Why deal with it now?
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 Brickendon, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, call 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Why choose Mr Mastic in Brickendon
- Trusted Arbo and Everbuild sealants
- Neat joints and a tidy finish
- We’re fully insured
- Domestic, commercial and hotel work
Read what affects the cost and our reviews.
How we quote for sand mastic
For a quick quote, just ask. The main things that affect it are:
- The number of rooms or windows
- When we can work, for business premises
- Access and height
- Which sealant suits the joint
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What to tell us for a quote
When you contact us, these details help:
- The problem you’ve noticed
- Where the property is
- If someone has resealed it before
- Roughly how big the job is
There’s no standard price list, because every job is different. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or email us.
Frames and glazing around Brickendon
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Rented homes near Bayford station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. Homes close to Holy Cross & St Alban include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in.
Brickendon is about 3 miles west of Hoddesdon, in Hertfordshire. Homes, rented property, offices and hotels in Brickendon can book us for sand mastic, old or new, large or small. The work is guaranteed for a year. Across Hertfordshire, we cover 381 places, Brickendon among them. We also work in London, about 18 miles from Brickendon.
Postcode districts we cover here for sand mastic: SG13. We also cover Wormley West End (2 miles south-east), Goose Green (2 miles east), Horns Mill (2 miles north), High Leigh (2 miles east) and Woollensbrook (2 miles north-east). Within a short drive, we also cover Watford (15 miles south-west), Stevenage (11 miles north), St Albans (11 miles west), Bishop's Stortford (13 miles north-east), Welwyn Garden City (6 miles north-west) and Harpenden (12 miles west).
Near you in Brickendon
Around Brickendon, our work takes us to homes and buildings near The Farmer's Boy pub. Brickendon’s nearest station is Bayford station, roughly 0.6 miles west of the centre. Nearby you will also find The National Speedway Museum (1.2 miles south-east) and Hertford County Hospital (2.8 miles north). Green spaces nearby include Cheshunt Lake and Danemead.
Landlord and commercial work in Brickendon
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
Letting agents and landlords in Brickendon can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Avoid heavy scraping on the mastic joint
- Get any rot dealt with first
- Check with your local planning authority if your home is listed
- Inspect the joints round the windows every year or so
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at before trying a quick fix.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber and timber that stays wet can rot.
Questions from Brickendon
I let a flat near Bayford station. Can you help?
Yes, we work for landlords and letting agents. You can ring 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.
Will you come out to Brickendon?
Yes, Brickendon 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.
Is consent needed for window work on a listed home?
Speak to your local planning authority before work starts. Sand mastic is often favoured as like for like, but they decide.
What does sand mastic cost?
It depends on the job, so we quote each one individually. For a quick quote, call 0345 464 0079 or send us an email with a short description of the job.
Are you insured?
Yes. Mr Mastic is fully insured.
What is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
Do you guarantee sand mastic work?
Every job comes with our one-year guarantee.
Can old silicone round a sash window be swapped for sand mastic?
Yes, we do this often. The old silicone has to come out completely so the mastic can sit properly.
