Hampshire · England
Sand mastic for sash & case windows in Greatham, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Greatham and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cement or filler used on old window joints that has cracked
- Gaps between timber frames and stone or brick
- Mastic round period door frames that has failed
Frames and glazing around Greatham
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Liss station, older sash windows in a rental need their mastic kept sound to keep the weather out. In the older streets around Church of St John the Baptist, the joint between an old wall and a newer frame is normally the first place rain gets in. If you look after a building such as Greatham Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Greatham is about 5 miles north-east of Petersfield, in Hampshire. We provide sand mastic to homes and businesses in Greatham and the surrounding area. Greatham is one of 683 places in Hampshire where we work for sand mastic. Portsmouth is on our list too, around 20 miles away.
Every address in GU33 is within our area for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on Longmoor Road, Wolfmere Lane and Todmore or anywhere close by, we can help. If you’re just outside Greatham, we cover Longmoor (1 mile east), Woolmer (1 mile north), Liss Forest (1 mile south), Blackmoor (1 mile north) and The Mint (2 miles south). Larger places within reach include Havant (15 miles south), Fleet (14 miles north), Horndean (13 miles south-west), Aldershot (13 miles north-east), Alton (7 miles north-west) and Waterlooville (15 miles south-west).
Near you in Greatham
The closest station to Greatham is Liss station, about 2 miles south of the centre. Nearby you will also find The Romany Museum (2.9 miles north-west) and Chase Community Hospital (2.5 miles north-east). Open spaces near Greatham include Liss Riverside Railway Walk North and Selborne Hill.
How we handle sand mastic in Greatham
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. Typical jobs include draughty sash windows at the surround and window mastic to renew ahead of painting, on stone surrounds, tenement windows and period & listed homes.
Mastic can only go onto a dry, clean joint, so window work in Greatham is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
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.
- Place
- Greatham (GU33)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How the job changes by surface
Sash and case windows
Sash windows are where we do most sand mastic work. Each joint round the box is raked out and renewed.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair, so check who is responsible first.
Towns and villages near Greatham
Also in Greatham
Your questions about sand mastic in Greatham
Is Greatham within the area you cover?
Yes. Greatham is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is Greatham in your area for sand mastic?
Yes, Greatham is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
Are you insured?
Yes. We are fully insured.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or email us.
Can you quote for more than one area?
Of course. Doing several areas at once is generally more efficient.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Quotes for sand mastic in Greatham
We quote each job individually. This is what makes a difference:
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
- Any mould that needs treating
- How easy the joints are to reach
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, phone 0345 464 0079 or email us and we will give you an honest view and a quote.
Helping us quote
Photos help, but a description is a good start. Try to tell us:
- The rough size of the job
- The address or postcode of the job
- The problem you’ve noticed
- If someone has resealed it before
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, call 0345 464 0079 or drop us an email.
Landlords, agents and businesses in Greatham
Hotels need rooms back in use, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will quote.
Why deal with it now?
Before painting the windows, it pays to renew the mastic. Painting over failed mastic doesn’t seal it and traditional guidance is to leave the new mastic unpainted. Around Greatham, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
The cost reflects the work involved, not guesswork. That is why we ask a few questions first and agree the price before starting.
What you get with us
- Quality sealants from Arbo and Everbuild
- Old sealant always removed completely
- Rated 4.9 stars on Google
- Anti-fungal silicone where joints get wet
Take a look at our cost guide and what customers say.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
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 doesn’t work out, we can still put it right.
What we do, step by step
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours for a single window, longer for several and we leave things clean and tidy. Somewhere like Greatham needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First, we look at the surrounds with you and agree what needs doing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- 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 about any water getting in
- Move anything stored near the joints
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
Getting a quote is simple: let us know what needs doing and where. A few photos by email make the job easier to understand.
Advice
What sealant work cannot fix
Before booking, it’s worth knowing the limits too:
- Timber that has rotted
- Masonry that needs repairing
- Whether work needs listed building consent
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think before booking.
Joints and surfaces we work on
- Tenement windows
- Brick reveals
- Sash and case windows
- Timber door frames
- Period & listed homes
- Stone surrounds