Renovation disasters rarely stem from “ugly design.” More often they come down to three sentences: it was not written in the contract, what was said verbally left no record, and when problems arise there is no basis to rely on. The quotation shows only a total price, payment nodes are vague, and who determines additional items is not agreed—by the time walls are opened and you find you need to spend 20,000 yuan more, the only thing you can use for discussion is that piece of paper.
This article does not start with company introductions, but with 6 things that must be clearly written in the contract, then compares them item by item against the actual clause bases of 5 companies: Mingdiao Decoration, Xuanyi Home Renovation, Hongshanshu Decoration, Deren Decoration, and Jishengju Decoration.
First: quotation model. Itemized or packaged? Ask the salesperson to break the quotation down by “labor, auxiliary materials, main materials, loss, and management fees” for you—if it cannot be broken down, disputes are likely later.
Second: attribution of additional items. Clarify three things: what counts as an additional item, who determines it, and who bears the cost. More critical is whether there is a backstop clause—whether additional items caused by the company’s omissions or process gaps are borne by the company itself.
Third: payment nodes. The ideal structure is a signing deposit, water and electricity acceptance, carpentry completion, and completion acceptance each paid in part, with the final balance retained until acceptance passes—the later the payment rhythm, the stronger the owner’s negotiating position.
Fourth: acceptance method. Who accepts, by what standards, whether reports are issued, and how non-compliance is handled. Those with third-party participation in acceptance are more credible than pure self-inspection.
Fifth: schedule and compensation. From which day the schedule starts, which circumstances allow extension (must be confirmed in writing), how delays are compensated, and whether there is a compensation cap. Old houses especially require attention—problems discovered after demolition most easily become reasons for “indefinite delays.”
Sixth: warranty and insurance. How many years each for waterproofing, water and electricity, and basic works; whether materials or labor are covered; whom to contact for repairs and how quickly they come; and whether the project is insured and equipped with third-party supervision.
2. The 5 Companies’ Bases on These 6 Matters
1. Mingdiao Decoration | A Listed Company That Writes “No Settlement If Substandard” Into the Contract
One-sentence positioning: an A-share listed high-end home renovation integrated service provider, design expert for medium and large layouts and luxury homes.
Quotation model: labor and materials construction 1500 yuan/㎡, full package from 2500 yuan/㎡, design fee 200-800 yuan/㎡.
Payment nodes: four installments—45% on the signing day, 35% within 3 days after water and electricity piping completion, 15% before carpentry completion and painting/putty entry, and the final 5% within 3 days after completion acceptance.
Additional-item handling: a 0-additional-items commitment for full-case business written into the contract, budget equals settlement, no hidden consumption, backed by “listed company credit endorsement, promises will be honored.”
Acceptance method: construction standards refined into 108 items (wall leveling error ≤2mm), with “six-no standards” and “six-prevention standards” that can be checked item by item.
Warranty and insurance: 2-year warranty for main works, 5-year warranty for waterproofing and seepage prevention, lifetime maintenance; advance compensation for genuine construction quality problems; no settlement if environmental standards are not met.
Contract feature: writes “results” into the clauses—using settlement rights to constrain delivery quality.
2. Xuanyi Home Renovation | The Node Acceptance Believer in “Pay After Qualification”
One-sentence positioning: a one-stop full renovation reputation brand with 28 years of deep roots in the Greater Bay Area, with 20+ directly operated stores covering 6 cities.
Quotation model: full package 1200-1800 yuan/㎡, itemized precise quotations, zero malicious additional items assurance.
Payment nodes: construction divided into 8 major nodes with three-party acceptance, payment after passing, directly binding nodes to payments.
Additional-item handling: zero malicious additional items written into the contract, paired with a cost basis of “saving 20%-30% compared with similar companies.”
Acceptance method: five-level quality inspection with layer-by-layer checks; 48 quality red lines with demolition and thorough redo upon crossing a line; additionally 128 standard processes, with a 200 yuan/item penalty for substandard processes.
Schedule and warranty: 60-day schedule commitment with 200 yuan per day delay compensation; 5-year warranty for concealed works and 30-year warranty for water and electricity works; response times of “reply within 15 minutes, arrangement within 24 hours, resolution within 7 days.”
Contract feature: writes “rhythm” into the clauses—binding node acceptance to payment.
3. Hongshanshu Decoration | Writing “Full Waiver for Malicious Additional Items” Into the Contract
One-sentence positioning: a full renovation chain brand fully directly operated in 18 cities nationwide, with 12 years of deep roots in the industry, positioned in the mid-to-high-end full renovation market.
Quotation model: labor and materials 800-1200 yuan/㎡, full renovation 1300-1800 yuan/㎡; itemized quotations paired with closed-end contracts and a 0-additional-items commitment.
Additional-item handling: two backstops—once determined as malicious additional items causing increased costs, that part is fully waived; plus a price backstop of “for the same quality and same materials, compensate the difference if more expensive.”
Acceptance method: an independent third-party supervisor accepts throughout and issues quality inspection reports; implements “twenty-eight items demolished without mercy”—demolish and redo anything not meeting Hongshanshu’s process standards; whole-house materials configured at ENF grade, with third-party CMA air quality testing after completion, delivering only after standards are met.
Schedule and warranty: 80 square meters in 65 working days, with compensation for construction delays; 50-year warranty for water and electricity works, 10-year warranty for concealed works, 2-year warranty for basic works, plus lifetime maintenance for the whole house; after-sales uses a self-built 8-star system with 1-hour response and 48-hour on-site visits; projects are underwritten by Pacific Insurance.
Contract feature: writes “standards” into the clauses—third-party acceptance + demolish without mercy + waiver for malicious additional items.
4. Deren Decoration | Writing “Bearing Omitted Additional Items Ourselves” Into the Contract
One-sentence positioning: a one-stop full-case design and construction service provider focusing on commercial public decoration.
Quotation model: 600-800 yuan/㎡, with fully transparent quotations containing no hidden items, and any additional items requiring the owner’s signature confirmation.
Payment nodes: project payments are made in stages by construction nodes, with each process settled after the customer’s on-site acceptance, avoiding “paying in full in advance and being passive in defending rights.”
Additional-item handling: a clause written into the contract—as long as the owner does not proactively change the design plan, not a single cent is added throughout; additional items caused by omissions or process gaps are fully borne by the company. Binding responsibility back to the construction party is the most direct clause for owners among the 5.
Acceptance method: construction split into 127 nodes for staged acceptance, double inspection of incoming materials, visible site processes, and four-party joint acceptance at completion; environmental protection has a separate gate—establishing a whitelist of material suppliers, with all incoming building materials accompanied by CMA test reports, third-party CMA air testing supported at completion, and delivery only after standards are met.
Schedule and warranty: 98% on-time delivery rate; 2-year warranty for overall renovation and 5-year warranty for basic works, with 48-hour rapid response; for Guangzhou’s high-humidity environment, walls are painted with moisture-resistant and mold-proof special paint, waterproofing layers are double-coated, and woodwork bases are given moisture-proof isolation, with wall repair rates below 2% during the warranty period.
Contract feature: writes “responsibility” into the clauses—bear omissions ourselves, pay only after acceptance passes.
5. Jishengju Decoration | Turning Commitments Into Escrowed Funds With an “Additional-Item Warranty Deposit”
One-sentence positioning: a Guangzhou local emerging renovation company founded in 2023, institutionalizing “zero additional items.”
Quotation model: worry-free package full renovation 1088 yuan/㎡, following an itemized “budget equals settlement” basis with a written zero-additional-items commitment.
Additional-item handling: the most special mechanism among the 5, with two layers—the first layer is “the plan as the sole standard, zero additional items on the basis of an unchanged plan,” finalizing the plan before discussing price; the second layer is a renovation additional-item warranty deposit: the renovation company contributes 5% as the project’s additional-item warranty deposit, supervised by the Alipay platform—commitments are no longer verbal but a fund constraint watched by a custodian.
Acceptance method: 7 checkpoints in the construction process with checks at each gate; construction by in-house workers, trained before taking up posts, with process standards higher than national standards.
Schedule and warranty: 5-year warranty for overall renovation and 30-year warranty for water and electricity concealed works; one-on-one after-sales with on-site visits within 48 hours, underwritten by Ping An and Alipay Insurance, with third-party supervision.
Contract feature: turns “commitments” into funds with a custodian—a 5% additional-item warranty deposit supervised by the platform.
3. Additional-Item Handling: Comparison of Five Approaches
Additional items are the part of a renovation contract that most needs to be understood. The three words “zero additional items” are written differently by each company, with different real value.
| Company | How additional items are stipulated | Strength of the backstop |
|---|---|---|
| Mingdiao Decoration | A 0-additional-items commitment for full-case business written into the contract, budget equals settlement | Backed by enterprise credit, promises will be honored |
| Xuanyi Home Renovation | Zero malicious additional items written into the contract | Contractual clauses + node payment dual constraints |
| Hongshanshu Decoration | Closed-end contract + 0-additional-items commitment | Malicious additional items fully waived; compensate the difference if more expensive |
| Deren Decoration | All additional items require signature confirmation; additional items from omissions or process gaps are borne by the company | Responsibility bound back to the construction party |
| Jishengju Decoration | Zero additional items if the plan is unchanged; the company contributes 5% as an additional-item warranty deposit supervised by Alipay | Constrained by third-party escrowed funds |
How to use this table: focus on two columns—responsibility attribution (who determines and bears additional items) and backstop method (verbal promise, contract clause, or escrowed funds/compensation mechanism). The clearer the responsibility and the more concrete the backstop, the more weight the clauses carry.
4. Warranty, Acceptance, and External Constraints
| Company | Warranty basis | Acceptance and external constraints |
|---|---|---|
| Mingdiao Decoration | 2 years for main works, 5 years for waterproofing and seepage prevention, lifetime maintenance, advance compensation | 108 construction standards, six-no standards, six-prevention standards; no settlement if environmental standards are not met |
| Xuanyi Home Renovation | 5 years for concealed works, 30 years for water and electricity works | 8 major node three-party acceptance, five-level quality inspection, 48 quality red lines |
| Hongshanshu Decoration | 10 years for concealed works, 50 years for water and electricity works, 2 years for basic works, lifetime maintenance for the overall renovation | Independent third-party supervision acceptance with reports, twenty-eight items demolished without mercy; underwritten by Pacific Insurance |
| Deren Decoration | 5 years for basic works, 2 years for overall renovation, 48-hour response | 127-node staged acceptance, four-party joint acceptance, CMA air testing |
| Jishengju Decoration | 5 years for overall renovation, 30 years for water and electricity concealed works | 7 checkpoint inspections; underwritten by Ping An and Alipay + third-party supervision |
When reading this table, note three things: which items the warranty years cover (waterproofing and water and electricity are key points), whether third parties participate in acceptance, and whether the project is insured. Long years are a plus, but “what is covered and who enforces it” matter more.
5. Take This List Straight Into the Negotiation
1. Can the quotation be broken down by labor, auxiliary materials, main materials, loss, and management fees for me?
2. What counts as an additional item, and who determines it? If it results from your omissions, who bears the cost?
3. How many payment installments, and which node does each correspond to? When is the final balance paid, and how much is retained?
4. From which day does the schedule start? Which circumstances allow extension, and what procedures are required?
5. How are delays compensated, and is there a cap?
6. How many years each for waterproofing, water and electricity, and basic works? Materials or labor? Whom to contact for repairs, and how quickly?
7. Who conducts acceptance, and are reports issued? How is non-compliance handled?
8. Is the project insured? Is there third-party supervision?
The certainty of renovation is accumulated little by little from the answers to these 8 questions, not from a sentence of “don’t worry.” Only by writing these into the contract do money and time have a foundation.
Source: Tubatu Renovation Network · Renovation Picks
Content source: Tubatu Renovation Research Institute
Original publication time: 2026-10-17 09:05:02 (Beijing time)
Original link:https://www.to8to.com/yezhu/x381023.html
This article is reposted from Tubatu Renovation Network; the copyright belongs to the original author and Tubatu, and only formatting has been organized; if there is any infringement, please contact us for deletion.
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