Exterior window replacement with thermal-break aluminium and solar thermal renovation 2026 Tender

Original: Substitució de les fusteries exteriors existents per noves fusteries d’alumini amb trencament de pont tèrmic, vidres dobles de baixes emissions i persianes motoritzades; aixi com la renovació i posada al dia de la instal·lació solar tèrmica destinada a donar suport a la producció d’aigua calenta sanitària i al sistema de calefacció de la residència.

Patronat Municipal Assistencial de la Residència d'Avis de Juneda

About this tender

The Patronat Municipal Assistencial de la Residència d'Avis de Juneda is procuring public works (file 605/2026) for the partial replacement of exterior joinery and the renovation of the domestic hot water solar thermal installation at the municipal residence in Juneda (Lleida, Catalonia). The tender is divided into two lots. Lot 1 covers replacing the existing exterior windows and doors with new aluminium frames with thermal break, low-emissivity double glazing and motorised blinds. Lot 2 covers partial renovation of the existing solar thermal installation and installation of 10 new solar thermal collectors, supporting domestic hot water and the residence's heating system. The contract duration is stated as one month for each lot. Price revision is not foreseen, no variants are admitted, and no extensions or modifications are foreseen. Works must be coordinated with the residence's ongoing operation, correct management of construction waste is required, and occupational risk prevention and social/tax compliance conditions apply.

Bidder eligibility

Lot 1: Business classification Group C (Buildings), Subgroup 9 (Metal joinery), Category 1 (contracts up to EUR 150,000). Economic and financial solvency: minimum annual business volume of EUR 106,698.57 (approx. USD 117,368), proven by annual accounts. Technical solvency: list of works projects in the last five years with a minimum amount of EUR 49,792.66 (approx. USD 54,772), proven by certificates of good execution. Lot 2: Business classification Group J (Mechanical installations), Subgroup 4 (Plumbing and sanitary), Category 1. Economic and financial solvency: minimum annual business volume of EUR 23,089.02 (approx. USD 25,398), proven by annual accounts. Technical solvency: list of works projects in the last five years with a minimum amount of EUR 10,774.87 (approx. USD 11,852), proven by certificates of good execution. All bidders must demonstrate compliance with Article 40 of the Law on Social Order Infractions and Sanctions and Article 43.1.f) of the General Tax Law, and provide monthly payroll-related documentation during execution. Reservation of the service to a specific profession is marked as applicable for both lots.

How bids are scored

Both lots use the same multi-criteria award structure: - Price: 60 points (automatic evaluation). - Other automatic criteria: 20 points, covering after-sales service and technical assistance, with the observation 'extension of warranty period'. - Criteria subject to value judgment: 20 points, covering organisation, qualifications and experience of the assigned personnel, with the observation 'work plan'. Total: 100 points. Price weighting is 60% and quality-related criteria total 40%, of which 20% are automatic and 20% require judgment. Envelope B (economic proposal and automatic values) is opened after the prior envelope is evaluated.

Lots

• Lot 1: Substitució fusteria i tancaments exterior (Replacement of exterior joinery and enclosures)

  $78K

  Replacement of existing exterior joinery with new aluminium frames with thermal break, low-emissivity double glazing and motorised blinds. CPV 45421100-5. Business classification Group C, Subgroup 9, Category 1. Duration 1 month.

• Lot 2: Renovació captadors solars (Solar collector renovation)

  $17K

  Partial renovation of the existing solar thermal installation and installation of 10 new solar thermal collectors. CPV 45261215-4 (secondary 09331100-9). Business classification Group J, Subgroup 4, Category 1. Duration 1 month.

Key requirements

• ✓Replacement of external windows/doors with thermally-broken aluminium frames
• ✓Installation of double-glazing with low-emissivity coatings
• ✓Installation of motorised external blinds/shutters
• ✓Renovation and upgrade of solar thermal installation for domestic hot water and heating support

Procurement contact

The notice names a procurement contact for clarification questions.

CPV codes

Relevant sectors

About this sector

Energy efficiency funding covers building retrofits, industrial process upgrades, heat recovery, efficient equipment and demand reduction. It arrives as grants for audits and capital works, as support schemes run by agencies and utilities or as public tenders for retrofit and energy services. Applicants usually need a baseline of current energy use and a measured saving.