Hampshire · England

Sand mastic for sash & case windows in Leagreen, Hampshire

Specialist sand mastic for Leagreen: careful preparation, the right product and tidy work. Ask us for a quick quote.

  • Wind and rain getting in round a sash window
  • A silicone bead on a sash window that spoils the look
  • Mastic that needs renewing before redecorating

Sand mastic for Leagreen homes and businesses

Sand mastic in Leagreen

We work across Leagreen renewing sand mastic on sash windows and doors. Every joint is cleaned out and filled by hand, finished to suit the masonry. Typical jobs include old sand mastic that has cracked, crumbled or fallen out and draughty sash windows at the surround, on sash and case windows, brick reveals and stone surrounds.

Homes in small places like Leagreen often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.

We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Location
Leagreen (SO41)
Wider area
Hampshire
Cover
12 months on all our work
Price
Quoted before any work starts
Phone
0345 464 0079
Last updated
26 October 2026

Landlords, agents and businesses in Leagreen

Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.

Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.

What affects the quote in Leagreen

Some jobs are bigger than they look, and some smaller. What affects the quote:

  • Mould in or behind the old joints
  • The number and length of the joints
  • When we can work, for business premises
  • Access and height

We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.

Helping us quote

Photos help, but a description is a good start. Please mention:

  • What the problem is, such as mould, gaps, leaks or cracking
  • Pictures of the joints, sent by email
  • Whether it’s a home or a business
  • Where the property is

Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. When it suits you, call 0345 464 0079 or email us.

Honest limits

We will not take on work that won’t last, so here’s what sealant cannot put right:

  • Rotten sashes, sills or window boxes (a joiner’s job)
  • Sash cords, weights and draught-proofing of the sashes
  • Planning or listed building consent (your local planning authority decides)

Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.

What we seal

  • Sash and case windows
  • Stone surrounds
  • Brick reveals
  • Period & listed homes
  • Timber door frames
  • Tenement windows

Why act early in Leagreen

Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Around Leagreen, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.

No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.

Why Leagreen clients choose us

  • Arbo and Everbuild products
  • Full insurance on every job
  • Anti-fungal sanitary silicone in wet areas
  • Old sealant always removed completely

Read how sealant jobs are priced and customer reviews.

The process

We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours for a single window, longer for several. Somewhere as small as Leagreen, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We look at the surrounds with you and agree the joints to renew.
  2. We remove the old, loose mastic.
  3. We pack any deep voids first.
  4. The sand mastic is mixed and pressed into the joint by hand.
  5. The surface is finished to suit the stone or brick.

How to prepare

  • Move anything stored near the joints
  • Try not to wet indoor joints just before the visit
  • Tell us about access, such as stairs, a lift or high-level joints

Ask for a quote

For sand mastic in Leagreen, call 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before work begins.

Get a quick quote

Advice

Do you need sand mastic in Leagreen?

Most of it is simply age. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.

Common reasons people contact us include:

  • Silicone on a period window that looks wrong
  • Old cement repairs round a window that have failed
  • Gaps between timber frames and stone or brick
  • Mastic round period door frames that has failed

If you live in an older home near Church of All Saints, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

What your quote should include

  • What preparation is included
  • What insurance they hold
  • Is the old sealant removed completely?
  • Which colour the sealant will be

Choosing a sealant specialist

Sand mastic in Leagreen: local notes

Leagreen is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around older windows and doors, especially on the side facing the sea. Historic houses like Highcliffe Castle (about 4.5 miles west) are a reminder that the area around Leagreen 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.

If you let a flat or house near New Milton station, older sash windows in a rental need their mastic kept sound to keep the weather out. Schools such as Hordle CofE (VA) Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.

Leagreen is about 3 miles west of Lymington, in Hampshire. Homes, rented property, offices and hotels in Leagreen is covered for sand mastic. The work is guaranteed for a year. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. We also work in Southampton, about 15 miles from Leagreen.

Here we cover the SO41 postcode area for sand mastic. Nearby, we also carry out sand mastic in Downton (1 mile west), Hordle (1 mile north), Ashley (2 miles north-west), New Milton (2 miles north-west) and Barton on Sea (2 miles west). We also work in nearby towns such as Totton (13 miles north), Lymington (3 miles east), Hythe (12 miles north-east), Ringwood (10 miles north-west), Dibden Purlieu (12 miles north-east) and Marchwood (13 miles north-east).

Landmarks near Leagreen

Locally, jobs take us to homes and businesses close to The Arnewood School. Leagreen’s nearest station is New Milton station, roughly 2.2 miles north-west of the centre. Other landmarks nearby include Lymington New Forest Hospital (3.5 miles north-east) and Sammy Miller Motorcycle Museum (3.1 miles north-west). For a walk, there’s Milford on Sea LNR.

Map of Leagreen © OpenStreetMap contributors

DIY sealant or a professional job?

What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.

If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.

Common questions in Leagreen

Can you help a landlord with a rental near New Milton station?

Yes, we work for landlords and agents. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear quote.

Do you cover smaller places like Leagreen?

Yes. Leagreen 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.

What exactly is sand mastic?

It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.

How much does sand mastic cost in Leagreen?

The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.

Which products do you use?

Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We’ll tell you what we are using and why.

What do you need from me for a quote?

A short description and the location, with pictures by email if possible. We will ask anything else we need to know.

Will you leave a mess?

We keep the work tidy. Nearby surfaces are protected.

Do the sealants smell?

It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job