Southampton · England
Sand mastic for sash & case windows in Lordswood, Southampton
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Lordswood, with a one-year guarantee on every job. Ask us for a quote.
- Mastic round period door frames that has failed
- A silicone bead on a sash window that spoils the look
- Cement or filler used on old window joints that has cracked
Landlord and commercial work in Lordswood
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Sand mastic in Lordswood
On many period windows, sand mastic looks right and suits the building. On modern frames we’d normally use a flexible sealant and we’ll explain which is best for yours. We’re often asked to deal with mastic that needs renewing before redecorating and modern sealant on a period surround, across period & listed homes, timber door frames and tenement windows.
Homes around Lordswood range from older properties to newer houses, and their windows range just as widely. The right sealant depends on the frame and on what it sits in.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Location
- Lordswood (SO16, SO15)
- Wider area
- Southampton
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How the job changes by surface
Period and listed homes
Materials matter on listed and conservation-area homes. Like-for-like sand mastic is usually favoured.
Stone surrounds
We take care not to mark the stone while raking out the old mastic.
How we quote for sand mastic
Jobs vary more than people expect. The main factors:
- The type of sealant required
- Access and height
- When we can work, for business premises
- Whether there’s mould to deal with
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, 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
To make quoting easier, please include:
- How many joints, rooms or windows are involved
- Where the property is
- The problem you’ve noticed
- Whether it has been sealed before
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will talk you through the work and give you a clear quote.
Honest limits
We’d rather tell you now than do work that won’t last, so these are the limits:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sashes that rattle, stick or won’t open
- Cracked or broken glass
If you are not sure, just phone 0345 464 0079 or email us and we will give you a straight answer.
Where we work in Lordswood
- Brick reveals
- Period & listed homes
- Timber door frames
- Tenement windows
- Stone surrounds
- Sash and case windows
What we do, step by step
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, do the work and clear up. It usually takes a few hours for a single window, longer for several. In a smaller place like Lordswood, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- Tell us if parking is tricky
- Mention any sign-in or site rules at work premises
- Try not to wet indoor joints just before the visit
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you are ready, call 0345 464 0079 or drop us an email.
Related advice
How to look after the new joints
After the cure time, these simple habits help:
- Make sure water runs off the sill
- Leave the new mastic unpainted
- Ask the planning authority about consent for listed or conservation-area homes
- Keep modern sealant off the mastic
Do not touch or press the mastic while it hardens. It skins over quickly, but takes longer to harden fully.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
Why act early in Lordswood
Draughts round a sash window aren’t always the sashes. Open mastic joints round the box can let air in, and renewing the mastic closes them. Homes in smaller places like Lordswood can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why book with us
- Domestic, commercial and hotel work
- Anti-fungal silicone where joints get wet
- Tidy, careful work
- Rated 4.9 stars on Google
Read our cost guide or customer reviews.
Also in Lordswood
Questions from Lordswood
Does the coastal weather in Lordswood affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Will you come out to Lordswood?
Yes. Lordswood is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
How long does sand mastic take to harden?
It forms a skin fairly soon, then hardens over a longer period. The weather and joint depth both affect it.
How do I get a quote for sand mastic in Lordswood?
It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or email us and tell us what needs doing and where.
Are you fully insured?
Yes. We are fully insured.
Will it make a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned.
I’m a tenant. Can you help?
We’re happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.
What sand mastic looks like in Lordswood
Lordswood is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. With historic houses such as South Stoneham House (about 2.4 miles east) nearby, there’s older building stock in the area around Lordswood as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Managing a site like Oakwood Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. In the older streets around Lord's Hill Church, the joint between an old wall and a newer frame is normally the first place rain gets in. Letting a property close to Millbrook (Hants) station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Lordswood is about 2 miles north-west of Southampton, in Southampton. Whether you are in the middle of Lordswood or further out, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. We cover 40 towns and villages across Southampton, from the larger towns to small villages.
Work in SO16 and SO15 works the same way as everywhere else we cover. If you need sand mastic at a property on Peach Road, Linden Road and Woburn Road or a nearby road, our applicators can take on the job. We also cover the places around Lordswood: Coxford (1 mile south-west), Bassett (1 mile east), Rownhams (1 mile north-west), Maybush (1 mile south-west) and Chilworth (1 mile north-east). We also work in nearby towns such as Townhill Park (3 miles east), Midanbury (3 miles east), Thornhill (5 miles south-east), Chartwell Green (4 miles east), Harefield (4 miles south-east) and Itchen (4 miles south-east).
Landmarks near Lordswood
Around Lordswood, our work takes us to homes and buildings near St James' Park, Upper Shirley High School and Oaklands Community School, among other places. The closest station to Lordswood is Millbrook (Hants) station, roughly 2.2 miles south of the centre. Well-known places in the area include Marlands Shopping Centre (2.8 miles south-east) and Princess Anne Hospital (0.5 miles south). Green spaces nearby include Testwood Lakes.