For trade
For insurers, housing associations and local authorities
CRS delivers remediation, insulation and energy-efficiency programmes at scale. Single property to portfolio-wide.
The pressure on social housing
Social housing in Wales is under more pressure than ever
Void properties sit empty for weeks while costs accumulate. Damp and mould complaints return faster than they can be resolved. Repair backlogs grow, tenants escalate to the Public Services Ombudsman for Wales, and the regulatory framework is tightening.
Every day a property sits empty costs lost rent, council tax, and vandalism risk. Reactive maintenance models are increasingly difficult to sustain.
Source: UK social housing sector, 2023/24
Complaints handled by housing redress bodies have surged. A large share stem from poor practice such as missing records, weak diagnostics, delays and poor QA.
Source: UK social housing sector, 2023/24. In Wales, complaints route via the Public Services Ombudsman for Wales.
Reported average repair cost per void property across the sector, indicative of the cost pressure on landlords managing ageing stock.
Source: UK social housing sector, 2023/24
Social landlords spent a record amount on repairs and maintenance in 2023/24. The reactive maintenance model is increasingly difficult to sustain.
Source: UK social housing sector, 2023/24
Regulation
The regulatory landscape is tightening
Under the Renting Homes (Wales) Act 2016, every dwelling let on an occupation contract (under seven years) must be fit for human habitation, judged against 29 matters and circumstances. While a home is unfit, rent is not payable for each day it remains so, and tenants can pursue damages through the courts.
WHQS hazard response rule, from 1 April 2026
Social landlords must investigate and remedy hazards, including damp and mould, within set timescales. For hazards with a likelihood of imminent harm: investigate within 24 hours and remedy within a further 24 hours. (Welsh Government, December 2025.)
Compliance reporting
Mandatory reporting to Welsh Government on hazard response performance is being introduced alongside the new rule.
Connective tissue
What's driving your programme
Each regulatory driver maps to a CRS delivery response. The relevant service page carries the commercial / social-housing detail.
WHQS hazard response rule (1 Apr 2026)
Damp & mould diagnostics with ventilation & extraction response.
Fitness for Human Habitation (29 matters)
Whole-home remediation across damp, structural and ventilation.
WHQS 2023 decarbonisation & energy targets
Fabric-first retrofit plus low-carbon heat and generation.
Void turnaround & disrepair backlogs
Single-programme remediation delivery against agreed SLAs.
Our delivery model
Rapid, SLA-backed turnaround
CRS Energy works with housing associations and local authorities across Wales to clear property backlogs, resolve longstanding defects and bring homes up to standard against a target of 7 days on agreed works. Rather than managing multiple contractors across fragmented programmes, you work with a single delivery partner taking responsibility from initial assessment through to completion and sign-off.
You share your data
Send us your stock data, priority properties, and the issues you need resolved.
We scope & cost
We return a costed programme with a clear timeline, covering all required works.
We deliver to SLA
Works are completed against a target of 7 days on agreed scope. Delivered to the SLA agreed in your programme.
Who we work with
Trusted across the supply chain
Insurers
Damp, mould and structural claims handled with full reporting and post-works verification.
Housing associations
Planned and reactive maintenance across managed stock, including void turnaround.
Local authorities
LA Flex, Warm Homes and broader retrofit programme delivery.
Main contractors
Specialist sub-contract packages for cavity removal, IWI, wall ties and ventilation.
Sectors we work with
Buyer-fit delivery for framework and tender procurement
Shallow sector pages for procurement teams, each links through to the relevant measure pages for technical detail.
Programmes we deliver
Coordinated programmes across the CRS service set
Each programme links into the commercial / social-housing layer of the relevant service page, with accreditation framing appropriate to that work type.
Damp, mould & ventilation response
Inspection-led damp, mould and whole-house ventilation response. Documented to hazard-response timescales.
Inspection-Led · PAS 2030 · Insurance-Backed
Ventilation & extraction
Whole-house ventilation strategy as part of condensation-and-mould response.
PAS 2030 · Whole-House Assessment
Loft & internal wall insulation
Retrofit fabric upgrades for EPC uplift and decarbonisation programmes.
PAS 2030 · TrustMark · Insurance-Backed Guarantee
Remedial wall ties & structural
Borescope-evidenced tie replacement using tested, CE-marked systems.
Structural · Tested Systems · Fully Insured
Boilers, heating controls & LGSR
Boiler replacement, controls upgrades, and landlord gas safety (LGSR / CP12).
Gas Safe Registered · Manufacturer-Backed Warranty
Air source heat pumps
Fabric-first heat pump programmes for decarbonisation targets.
MCS Certified · Full Heat-Loss Survey
Commercial Solar PV
B2B procurement-evidence delivery for commercial estates and HA portfolios.
MCS · Commercial G99 / DNO · Framework-Ready
Insulation Retrofit Programmes
Cavity, loft and IWI for councils, HAs and frameworks, suitability, supervision and conformity records.
PAS 2030 · TrustMark Lodgement · Inspection-Led
Whole-House Retrofit & Decarbonisation
PAS 2035 coordinated fabric-first retrofit for councils, HAs and frameworks.
PAS 2035 · TrustMark · TEP-Aligned
How we work with you
Built for B2B delivery
Single point of contact
Named contract manager from quote through to handover.
Agreed SLAs
Response, attendance and completion times agreed upfront and reported on.
Full reporting
Programme adherence, H&S, completion / sign-off evidence, warranty registration, and, for retrofit, carbon and social-value reporting. Claims evidenced, not generic.
B2B diligence
Compliance, social value and case studies
Full pages with accreditation status, social-value reporting and project evidence for framework buyers.
Compliance & accreditations
Held accreditations and insurances with status and renewal dates.
View full page
Social value reporting
Local jobs, apprenticeships, supply chain and community benefit, agreed up front and reported on completion.
View full page
Case studies
Commercial and framework projects with scope, risks managed and outcomes.
View full page
Accreditations & insurance
Pre-qualified for your supply chain
Logos, certificates and renewal dates collated to reduce buyer diligence friction.
| Accreditation / Cover | Scope / Cover |
|---|---|
| MCS | Solar PV, Air Source Heat Pumps |
| TrustMark | Retrofit (PAS 2030) |
| PAS 2030 | Insulation & ventilation retrofit |
| Gas Safe | Boilers, controls, LGSR / CP12 |
| Public / Product Liability | £5,000,000 cover |
| Employers' Liability | £10,000,000 cover |
| Professional Indemnity | £2,000,000 cover |
| Insurance-Backed Guarantee | Workmanship cover on installed measures |
Social value
Local jobs, apprenticeships and community benefit
Public buyers actively look for social-value evidence. We track and report our contribution as part of programme delivery.
Local jobs
Skilled engineering, installation and surveying roles based in Wales.
Apprenticeships
In-house apprenticeships across retrofit, gas and electrical disciplines.
Local supply chain
Preferred use of Welsh suppliers and sub-contractors where competitive.
Community benefit
Targeted contributions to community projects in the areas we work.
Case studies
Selected programme outcomes
Scope, risks managed and outcome. Photo evidence and references available on request.
HA portfolio damp & mould response
Risks managed: Tenant disrepair escalation, WHQS hazard rule readiness.
Outcome: Diagnostics, remediation and ventilation delivered to agreed SLA with full reporting.
LA retrofit programme (loft + IWI)
Risks managed: EPC uplift targets, ventilation balance after airtightness changes.
Outcome: PAS 2030 / TrustMark delivery with insurance-backed guarantee and ventilation coordinated alongside fabric works.
Insurer-led structural & damp claim
Risks managed: Single-property scope, evidenced cause and remedy, sign-off documentation.
Outcome: Borescope evidence, remediation and post-works verification handed back with photographic records.
Tell us about your scheme
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