Hampshire · England

Forestside Sand Mastic

Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Forestside, backed by a 12-month guarantee. Ask us for a quote.

  • Open joints round the window box
  • Mastic worn away on windows facing the weather
  • Gaps round a timber door in stone or brick

Sand mastic near Forestside

For landlords and businesses

Housing providers, facilities teams and property managers book us too in Forestside and across Hampshire. Several sites can go on one quote.

Letting agents and landlords in Forestside can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.

Sand mastic for homes and businesses in Forestside

We work across Forestside renewing sand mastic on sash windows and doors. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. We’re often asked to deal with mastic that needs renewing before redecorating and open joints round the window box, across brick reveals, timber door frames and stone surrounds.

Mastic can only go onto a dry, clean joint, so window work in Forestside is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.

The work is covered for a year after we finish. If anything isn’t right with it, ring 0345 464 0079 or send us an email.

Location
Forestside (PO9)
Region
Hampshire
Cover
One year on every job
Quotes
A clear price before work begins
Telephone
0345 464 0079
Page updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

Quotes for sand mastic in Forestside

Every job gets its own quote. This is what makes a difference:

  • How easy the joints are to reach
  • How many rooms, windows or areas are involved
  • The type of sealant required
  • Any working-time requirements on site

Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.

Helping us quote

When you call or email, these details help:

  • If someone has resealed it before
  • The problem you’ve noticed
  • Whether it’s a home or a business
  • The rough size of the job

For sand mastic in Forestside, phone 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.

Sand mastic in Forestside: local notes

The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Uppark (about 3.2 miles north) nearby, there’s older building stock in the area around Forestside as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.

Homes close to Christ Church include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in.

Forestside is about 4 miles east of Horndean, in Hampshire. We provide sand mastic to homes and businesses in Forestside and nearby. 683 places in Hampshire are on our list. We also work in Portsmouth, around 10 miles away.

Here we cover the PO9 postcode area for sand mastic. Whether your property is on Lodge Lane and Forestside or anywhere close by, our applicators can take on the job. Nearby, we also carry out sand mastic in West Marden (1 mile north-east), Chalton (3 miles north-west), Blendworth (3 miles west), Buriton (5 miles north) and Nursted (5 miles north). Further out, we also cover Gosport (13 miles south-west), Havant (5 miles south-west), Fareham (13 miles west), Horndean (4 miles west), Waterlooville (6 miles west) and Petersfield (7 miles north).

Landmarks near Forestside

Typical jobs here are in homes near Stansted Park. The closest station to Forestside is Rowlands Castle station, roughly 2.2 miles south-west. A little further out are Clanfield Earthwork (4 miles north-west) and Havant War Memorial Hospital (5 miles south-west). Green spaces nearby include Compton Down and Kingley Vale National Nature Reserve.

Map of Forestside © OpenStreetMap contributors

Do you need sand mastic in Forestside?

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.

Signs it’s time to call us include:

  • Draughty sash windows at the surround
  • Tired mastic found when preparing windows for paint
  • Failed mastic on an exposed elevation
  • Modern sealant on a period surround

Rented homes near Rowlands Castle station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.

What your quote should include

  • How much experience the applicator has
  • How hidden problems are handled
  • What the quote includes, VAT included or not
  • Whether all the old sealant comes out first

How to choose a mastic man

Different surfaces, different methods

Period and listed homes

On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.

Brick reveals

Loose mastic comes out and deep gaps are packed before the new mastic goes in.

Should I try it myself first?

A DIY attempt doesn’t rule out a professional job. We cut it out and start again.

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

How it works

At the end, we look at the finished work together. The visit itself normally takes a few hours per window, depending on the condition of the joints, depending on how much there is to do. In a small place like Forestside, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First we agree which joints need doing.
  2. We remove the old, loose mastic.
  3. Deep gaps are packed so the mastic sits at the right depth.
  4. The sand mastic is mixed and pressed into the joint by hand.
  5. We dress the finish so it sits neatly against the masonry.

How to prepare

  • Keep children and pets away from the work area
  • Mention any parking rules near the property
  • Mention if the joints have been sealed before

Getting a quote

There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or email us.

Get a quick quote

Advice

FAQs for Forestside

Do you work for landlords with property near Rowlands Castle station?

Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.

Can you do sand mastic in Forestside?

Yes, Forestside is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll send you a clear quote.

What’s sand mastic made of?

Sand mastic is a traditional material for pointing round windows and doors. It combines sand with a linseed-oil-based binder.

Do you do commercial work?

Yes. Larger jobs can be planned room by room or area by area.

Can I add another job to the visit?

Yes. Tell us about everything you’d like done and you will get one quote.

Do you offer different sealant colours?

We will suggest a colour to suit the surroundings. The product needed can limit the range.

Is it possible to take out silicone and use sand mastic instead?

Yes, it’s a common request. The old silicone has to come out completely so the mastic beds in well.

Does someone need to be in?

It depends on the job. For work indoors, someone needs to let us in, and for outside work we will agree access with you when we book.

When something else is needed

To be straight with you, some problems need a different trade:

  • Decayed frames that need repair
  • Sashes that need overhauling
  • Cracked or broken glass

If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer before you book.

Where we work in Forestside

  • Timber door frames
  • Brick reveals
  • Sash and case windows
  • Tenement windows
  • Period & listed homes
  • Stone surrounds
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job