Revit MEP Designer — Update HVAC & Plumbing to Revised Architecture (Residential)

We already have Revit MEP models for this building — one for HVAC (heating + ventilation) and one for plumbing and drainage (water supply + sewerage). The problem is simple to state: the architecture has been revised, and both MEP models are still built on the OLDER architectural base. We need an experienced Revit MEP modeler to bring the models onto the current architecture, apply the apartment-by-apartment changes, resolve the clashes this creates, and re-issue clean documentation. This is a well-defined, well-documented job. We have already produced a written scope per discipline and a per-apartment change register, so you will not be guessing what needs to change — you will be executing against a clear list. THE SITUATION The HVAC and plumbing models sit on the previous architectural floor plans. The architect has since issued revised floor plans (walls moved, bathrooms and kitchens reconfigured, some baths changed to showers, utility rooms and saunas added, suspended-ceiling layouts relocated, shaft walls changed to 150 mm). The mechanical models therefore need to be re-based to the current architecture, not patched on the old one. On top of the re-basing, there is a defined set of coordination fixes and review comments to close out (details below). In short: link the new architecture, re-align both MEP models, apply the per-apartment changes, fix clashes, re-document. SCOPE OF WORK The work breaks into five workstreams. A. RE-BASING ONTO CURRENT ARCHITECTURE Link the updated architectural Revit model and re-align the existing HVAC and plumbing models to it. Verify that components, terminals, fixtures and routing sit correctly against the revised plans, floor by floor. This is the foundation step — most apartments need at least a re-base check even where the layout barely changed. B. PER-APARTMENT CHANGES (39 units, 4 floors) Apply the layout-driven changes across all 39 apartments. We provide a per-apartment change register (Excel) that lists, apartment by apartment, what changed and what it means for HVAC and for plumbing. Typical per-apartment changes: bathroom reconfiguration, kitchen relocation (sink / dishwasher / kitchen exhaust), bath replaced by shower (drain change), added utility room (new connections + floor drain), added sauna / steam room (ventilation + drain), shifted walls, relocated manifold cabinets. The building repeats vertically: roughly 12–14 unique apartment types stacked across floors 2–4, plus unique ground-floor units. Repeats are faster than first-of-type, but not free — shaft connections, risers, manifolds and per-floor checks still differ between stacked units. C. UNDERFLOOR HEATING (Uponor UFH Revit plug-in) Underfloor heating is designed with the Uponor UFH plug-in for Revit. Loops are parametric and generated by the plug-in (spiral / meander), with built-in hydraulic balancing per EN 1264. Where apartment geometry changed, the heated floor must be re-associated to the new room boundary, the loop regenerated, and the manifold reconnected. A review comment requires the loop spacing to be made denser in places — this is a parameter change + regeneration + hydraulic re-check across the affected floors, followed by resolving any warnings (e.g. loops exceeding max length may need splitting). We are NOT looking for manually drawn model-line loops. You must be comfortable working inside a dedicated UFH design plug-in. D. CLASH RESOLUTION AND COORDINATION Resolve clashes introduced by the re-base and the revised architecture. Known items include: Ventilation ducts crossing the water-meter node in some apartments — add levels, remove the crossing. Ducts / pipes vs. revised 150 mm shaft walls, and shafts where the internal dimension must be preserved (tight fit — verify capacity). Ventilation units placed over shower glazing or WC frames — relocate. All ducts and pipes are to be modeled with correct levels/elevations so crossings are visible and resolvable in the model. Coordinate manifold cabinets and diffuser positions with the electrical layout (manifold/electrical panel alignment; ventilation diffusers aligned with the lighting line in wet rooms, wardrobes and utility rooms). We coordinate the electrical side; you flag and adjust the MEP side. E. DOCUMENTATION AND REISSUE Re-tag both disciplines (we use tags, not manual dimensioning of pipe runs — architectural dimensioning stays on the architecture). Regenerate views, schedules and sheets for HVAC and for plumbing. Issue a clean revision with a short handover note of what was changed. WHAT WE PROVIDE Current architectural floor plans (Revit model + PDF), all four floors. A per-apartment change register (Excel) — apartment-by-apartment description of the change and its HVAC / plumbing implication, including a change-class and status per apartment. The architect's markup notes and open-question list. A written change brief per discipline (heating, ventilation, water, sewerage). The existing HVAC and plumbing Revit models on the old base. The Uponor UFH plug-in project data and our template / naming standards. Note on language: our source drawings and notes are in Estonian. You do NOT need Estonian — the change register and brief will be provided in a form you can work from, and markups are precise and visual. Estonian is a nice-to-have, not a requirement. We keep the regulatory documentation and final QA on our side. DELIVERABLES AND ACCEPTANCE CRITERIA The job is complete when: Both MEP models are re-based on the current architecture, verified floor by floor. All per-apartment changes from the register are applied. Underfloor heating loops are updated to the new geometry, spacing corrected per the review comment, and hydraulically balanced with no unresolved warnings (loops within max length and pressure drop). All listed clashes are resolved; ducts and pipes carry levels; no duct/pipe conflicts with the revised shafts, and no ventilation units over shower glazing / WC frames. Manifold and diffuser positions coordinated with the electrical layout. Views, schedules and sheets are regenerated for both disciplines and a clean revision is issued. A short written handover lists what changed.