Hampshire · England
Sand mastic for sash & case windows in Holbury, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Holbury, with a one-year guarantee on every job. Call for a quick quote.
- Draughts and rain around sash boxes
- Mastic worn away on windows facing the weather
- Mastic that needs renewing before redecorating
For landlords and businesses
Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Sand mastic in Holbury
On many period windows, sand mastic looks right and suits the building. Newer frames normally get a flexible sealant instead, and we’ll talk through which suits your home. We work on timber door frames, brick reveals and stone surrounds, and people most often call us about open joints round the window box and old cement repairs round a window that have failed.
Around Holbury, conservatories, garden rooms and patio doors are often part of the house. Those joints need the same attention as the main windows, and any older timber or sash windows need a sealant that suits them.
Each job carries a 12-month guarantee, whatever its size.
- Location
- Holbury (SO45)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
When it is not the sealant
We will not take on work that won’t last, so here’s what sealant cannot put right:
- Decisions on consent for listed homes
- Sashes that need overhauling
- Damaged stone surrounds
If you’re not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer.
Joints and surfaces we work on
- Stone surrounds
- Period & listed homes
- Tenement windows
- Timber door frames
- Brick reveals
- Sash and case windows
Windows and doors in Holbury
Holbury is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. With historic houses such as Beaulieu Palace House (about 2.9 miles west) nearby, there’s older building stock in the area around Holbury as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
If you let a flat or house near Netley station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Beaulieu Palace House, about 2.9 miles west, is one of the historic houses in the wider area around Holbury, and older homes nearby need a sealant that suits their walls.
Holbury is about 2 miles south of Hythe, in Hampshire. Our applicators cover sand mastic for homes and businesses in Holbury and the surrounding area, as part of our work across Hampshire. Holbury is one of 683 towns and villages in Hampshire where we work. For nearby work, see our Southampton page, about 6 miles away.
Jobs for sand mastic in SO45 works the same way as everywhere else we cover. Local streets include Beechwood Road, Park Hill Close and Pondhead Close, and we cover them all. Other places close to Holbury include Little Holbury (1 mile north-west), Roughdown (1 mile south), Hardley (1 mile north), Blackfield (1 mile south-east) and Langley (1 mile south). We also work in nearby towns such as Gosport (10 miles east), Eastleigh (10 miles north), Fareham (8 miles east), Totton (8 miles north-west), Chandler's Ford (11 miles north) and Hedge End (7 miles north-east).
Around Holbury
We work in homes and buildings around The New Forest Academy. For rail, the closest station is Netley station, about 3.8 miles north-east. Well-known places in the area include Beaulieu Abbey And Display Of Monastic Life (3.1 miles west) and Calshot Castle (3.4 miles east). Green spaces nearby include Mercury Marshes.
Nearby places to Holbury
Other services in Holbury
Signs you need sand mastic in Holbury
Timber swells and shrinks with the weather. The movement cracks the mastic little by little.
The most common problems we see are:
- Wind and rain getting in round a sash window
- Cement or filler used on old window joints that has cracked
- Crumbling sand mastic round a window
- Gaps round a timber door in stone or brick
If you look after a building such as Cadland Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Before you book anyone
- What the quote includes, VAT included or not
- What happens if they find a problem under the old sealant
- How long to leave it before use
- Whether they seal over old material or remove it
What happens if it’s left?
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. In a smaller place like Holbury, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, ring 0345 464 0079 or drop us an email for an honest opinion and a quote.
What you get with us
- Over 20 years’ experience
- Anti-fungal silicone where joints get wet
- Every job guaranteed for a year
- Homes, businesses and hotels
See our cost guide or what customers say.
FAQs for Holbury
Is Holbury within the area you cover?
Yes. Holbury is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Netley station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.
Does someone need to be in?
We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.
Can you replace silicone on a period window with sand mastic?
Yes. The silicone is cut out and the joint cleaned, then point it with sand mastic.
Is it OK to seal over old sealant?
No, it won’t last. It may look fine at first, but the new bead soon lifts. The old sealant has to come out completely.
What is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It’s made with sand and a linseed-oil-based binder.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit.
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
How it works
Most of a good job is in the preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it normally takes a few hours per window, depending on the condition of the joints. In a smaller place like Holbury, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- Mention any leaks or damp you’ve noticed
- On commercial sites, let us know about site rules
Getting a quote
Every job is quoted individually, so start by telling us what you need. Simply phone 0345 464 0079 or drop us an email and describe the job and send pictures if you have them.
Advice
What the job involves on each surface
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It suits older brickwork.
Timber door frames
Doors face weather and wear and the mastic can crack early. We rake it out and renew it.