Commercial
& Specification
For managing agents, housing providers, developers and architects: damp and waterproofing work that arrives with the documentation, the insurance and the programme discipline your project actually runs on.
Four Kinds ofCommercial Client
Managing Agents
Reactive and planned damp works across managed blocks and portfolios, with consistent reporting, agreed rates and a single point of contact.
Housing Providers
Damp and mould programmes built around HHSRS hazard assessment and Awaab's Law timescales, with the audit trail to evidence them.
Architects & Engineers
Waterproofing design input at RIBA stages 2–4, specification writing and review, and buildability advice before the details are frozen.
Main Contractors
Waterproofing packages on basements, podium decks, retained structures and conversions, delivered to programme with full documentation.
Waterproofing Design Support
BS 8102:2022 expects a waterproofing design specialist to be part of the design team, and expects that involvement to start early enough to influence the structure rather than react to it. We provide that input — reviewing the proposed grade of internal environment, the water table and ground conditions, the structural form, the drainage strategy, the maintenance access and the combination of systems needed to reach the required grade with an acceptable level of risk.
Practically, that means we would rather be in the conversation at stage 2 or 3, when a movement joint can still be moved and a sump position is still a line on a drawing, than at stage 5 when something needs cutting.
- Waterproofing design statements and specifications to BS 8102
- Review and comment on existing specifications and drawings
- Grade assessment and system selection, including combined Type A/B/C strategies
- Drainage, sump and pump strategy with maintenance access and redundancy
- Interface detailing at penetrations, joints, thresholds and lightwells
- Site attendance, installation inspection and sign-off records
Damp & Mould Programmes for Managed Stock
If you are responsible for occupied residential stock, the regulatory position around damp and mould has changed substantially. The Homes (Fitness for Human Habitation) Act 2018, the Housing Health and Safety Rating System framework and — for social landlords — Awaab's Law, introduced by the Social Housing (Regulation) Act 2023, have moved damp from a maintenance item to a compliance one with statutory timescales attached.
We structure this work so it produces evidence as well as repairs: dated surveys with measured readings and photographs, a consistent hazard assessment, a clear remedial specification with timescales, and completion records. Where a case is contested or escalating, that file is what you need.
Response for managed stock
We can operate to agreed service levels for portfolio clients, including attendance windows for reported damp and mould cases, standardised reporting formats and direct scheduling with tenants. Tell us what your obligations look like and we will build the programme around them rather than around our diary.
Commercial & Non-Residential Work
Offices, retail units, restaurants, schools, listed buildings, plant rooms, lift pits, archives and storage. The recurring themes are the same: below-ground water ingress, condensation in poorly ventilated spaces, penetrating damp through a tired envelope, and timber decay where a leak has been running quietly.
We are used to working in occupied and trading premises — out of hours where necessary, with dust and noise controls, phased so that one area stays operational while another is worked on, and with the RAMS, insurance and accreditation paperwork provided before we arrive rather than chased afterwards.
What You Get From Us
| Item | Provided |
|---|---|
| Accreditation | CHAS contractor; CSSW-trained waterproofing specialists; Newton certified installer; Federation of Damp member |
| Insurance | Public liability and employer's liability; certificates issued on request |
| Documentation | RAMS, COSHH data, waste transfer notes, O&M information and as-built records |
| Reporting | Standardised survey format, photographic evidence, itemised costings |
| Guarantees | Written system and workmanship guarantees, assignable where applicable |
| Aftercare | Annual servicing for drained waterproofing systems and pump maintenance |
CommercialFAQs
Yes. Evening, overnight and weekend working is routine for retail, hospitality and office premises, as is phasing works so that part of a site stays operational. We will set out the access requirements, noise and dust controls and the programme in the quotation so there are no surprises about what a "two week" job means for your occupiers.
As standard, before works start rather than on request. That includes risk assessments and method statements specific to the job, COSHH data for any products used, our CHAS accreditation, and public and employer's liability certificates. If your client or principal contractor has a particular pre-qualification portal or format, tell us and we will complete it.
We will price it. If we think something in it will not perform — a Type A system specified where the water pressure and substrate do not support it, or a drained system with no realistic maintenance access — we will price the specification as written and set out the concern separately, with a costed alternative. The decision stays yours, and you have it in writing either way.
Yes, and it usually works better for both sides. For portfolio clients we agree a rate schedule, a standard survey and reporting format, and a single point of contact, then work through stock on a programme rather than case by case. That gives you consistent data across the portfolio, which is what makes planned investment possible instead of permanent reactive spend.
Get the Cause Found & Fixed
Book a survey and you get a written report: what is causing the damp, what it takes to fix it and what it costs. No pressure, no guesswork.
Survey fee deducted from the cost of works if you proceed