
Mastic Sealing in Steep
Mastic sealing for building owners, managing agents and housing associations throughout Steep and nearby, by CSCS-carded applicators. CHAS accredited and fully insured.
- Complaints coming in block by block
- Failed external movement joints
- Mastic failing across several blocks on an estate
Mastic sealing across Steep
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Mastic sealing in Steep
We work for building owners, landlords with commercial or block portfolios, managing agents and housing associations. Many prefer a planned programme to one-off visits and we quote and schedule each building in turn. Most enquiries involve water getting in round frames after rain and estate-wide sealant that is simply worn out, across balcony and threshold joints, communal entrances and stairwells and shopfronts below residential blocks. Looking for mastic applicators who cover Steep? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.
Around smaller places like Steep, older walls fitted with newer windows are a familiar sight. Perimeter mastic there has to grip an uneven face and suit the building’s character.
The 12-month guarantee covers our workmanship: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

- Location
- Steep (GU32)
- Region
- Hampshire
- Cover
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Building owners, agents and FMs in Steep
Hospitality, education, healthcare, office and retail clients book us directly too. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.
Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.
Cost factors for mastic joints
Quotes vary with the job. It mainly depends on:
- Induction, permit and paperwork requirements
- Distance, for remote addresses
- Phasing around occupants
- How much there is to seal
Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.
What we need to price the job
Diagnosis starts before we arrive. Tell us:
- Clear photos of the problem areas
- Rough lengths or quantities, or drawings if you have them
- When you need the work done
- The postcode of the building
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To ask for one, call the office on 01277 525 020 or email a schedule or drawings.
On site: what to expect
Diagnose, treat, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. For a building around Steep, tell us how to find it and who will meet us. Add it to your enquiry and we will build it into the plan.
- We check the asbestos register for older buildings and look at the joints.
- A fixed quote covers the joints, products and order of work.
- We strip out the old sealant.
- Joint faces are cleaned, backed and resealed.
- We finish each building before moving to the next.
Preparing the site
- Tell us which areas need to stay in use
- Let building users know which areas are affected
- Send asbestos survey details if the building is pre-2000
Ask for a quote
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, ring 01277 525 020 or email us.
Advice
Should maintenance staff do it?
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Steep: questions and answers
Do you work for managing agents with blocks near Petersfield station?
Yes. Managing agents, landlords, property factors and housing associations are who this service is for. Photos of each elevation help us quote accurately.
Does your area include sites such as Upper Adhurst Industrial Park, near Steep?
Yes, sites like Upper Adhurst Industrial Park are within our area, along with the rest of Steep. A few photos and the unit address let us price the work.
Do you cover Steep?
Yes. We cover Steep, and the simplest way to start is to call 01277 525 020 or use the quote form.
How do you choose the sealant?
If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Can you reseal a whole block or estate?
Block-wide and estate programmes are common. The quote can be split however suits your budgeting.
Do you work to architects’ specifications?
Yes. The specification and the manufacturer’s installation guidance are what we work to.
Can people stay in the building while you reseal?
The work is planned around occupiers. Dates and areas are agreed with you so residents or tenants can be told and communal access is kept open.
Aftercare for building managers
To get the most from the new sealant:
- Share the asbestos register when you send details
- Avoid piecemeal callouts where you can
- Protect low-level joints in entrances
- Keep a record of when each building was resealed
Keep records of when each building was resealed. That makes future programmes easier to plan and shows what was done.
Planned resealing is easier to budget than emergency repairs. We can quote buildings in priority order so spending is spread.
Planned mastic for Steep portfolios
The South East is one of the drier parts of the UK. Outside work still depends on dry joints, and elevations facing the sun and the prevailing weather are typically where frame mastic ages first. Central London is about 49 miles from Steep. Within reach of London, blocks run by agents and associations are common around stations.
For agents with blocks near Petersfield station, 1.4 miles south of Steep, a block-wide mastic programme deals with frames, balconies and entrances in one go. Property owners at sites such as Upper Adhurst Industrial Park, 1.8 miles east of Steep, can have mastic renewed between lettings. If you’re responsible for a building such as Church of All Saints, frame and door mastic needs the same attention as any other property.
Steep is about 1 mile north of Petersfield, in Hampshire. If you are looking for mastic sealing in Steep, we can help, as we do across Hampshire. Steep is one of 723 places in Hampshire on our list for mastic joints. Sites around Portsmouth have their own page, about 16 miles away.
We cover the GU32 postcode districts for mastic joints. Buildings on Church Road and Mill Lane are within our area. Sites close to Steep are covered too, including Steep Marsh (1 mile north), Sheet (1 mile south-east), Oakshott (1 mile north), Petersfield (1 mile south) and Stroud (2 miles south-west). Bigger towns within reach include Havant (11 miles south), Horndean (9 miles south), Alton (9 miles north), Waterlooville (11 miles south), Purbrook (12 miles south) and Bordon (7 miles north-east).
Local landmarks in Steep
Around Steep, our work takes us to commercial buildings near The Cricketers Inn, Churcher's College and The Petersfield School. For rail, the closest station is Petersfield station, roughly 1.4 miles south of the centre. A little further out are Bear Museum (1.7 miles south) and Petersfield Community Hospital (1.5 miles south). For a walk, there’s Liss Riverside Railway Walk South and Wheatham Hill.
Why deal with it now?
Replacing mastic before water gets in is a planned job. Once water has tracked in, the repair list grows, and the complaints come with it. One visit to deal with every failing joint makes more sense than several trips to a place like Steep. Photos of every joint help us quote for the whole job.
The product called for affects the cost, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.
What you get with us
- Constructionline member
- Products installed to the manufacturer’s instructions
- Failed material removed, not covered up
- Fully insured, including public liability cover